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"The voltage - current variation of two metallic wires ""X. and .Y. at |Class 12 PHYSICS | Doubtnut
"The voltage - current variation of two metallic wires ""X. and .Y. at constant temperature are as shown in fig.
Assuming that the wires have the same length and the same diameter, explain which of the wires will have larger resistivity."
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zhlédnutí: 188

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A person has 2 parents, 4 grandparents, 8 great grandparents, and so |Class 11 MATH | Doubtnut4:29A person has 2 parents, 4 grandparents, 8 great grandparents, and so |Class 11 MATH | Doubtnut
A person has 2 parents, 4 grandparents, 8 great grandparents, and so |Class 11 MATH | Doubtnut
zhlédnutí 151Před 2 lety
A person has 2 parents, 4 grandparents, 8 great grandparents, and so on. Find the number of his ancestors during the ten generations preceding his own. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and...
Write the structures of the products of the following reactions |Class 12 CHEMISTRY | Doubtnut1:39Write the structures of the products of the following reactions |Class 12 CHEMISTRY | Doubtnut
Write the structures of the products of the following reactions |Class 12 CHEMISTRY | Doubtnut
zhlédnutí 43Před 2 lety
Write the structures of the products of the following reactions Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking a Picture of Doubt on Do...
Two parallel rail tracks run north-south. Train A moves north with the |Class 11 PHYSICS | Doubtnut3:39Two parallel rail tracks run north-south. Train A moves north with the |Class 11 PHYSICS | Doubtnut
Two parallel rail tracks run north-south. Train A moves north with the |Class 11 PHYSICS | Doubtnut
zhlédnutí 136Před 2 lety
Two parallel rail tracks run north-south. Train A moves north with the speed of `15m/s`and train B moves south with the speed of `25 m/s`. What is the velocity of ground with respect to B? Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistr...
Equal masses of oxygen, hydrogen and methane are taken in a container |Class 11 CHEMISTRY | Doubtnut3:36Equal masses of oxygen, hydrogen and methane are taken in a container |Class 11 CHEMISTRY | Doubtnut
Equal masses of oxygen, hydrogen and methane are taken in a container |Class 11 CHEMISTRY | Doubtnut
zhlédnutí 76Před 2 lety
Equal masses of oxygen, hydrogen and methane are taken in a container in identical conditions. Find the ratio of the volumes of the gases. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level),...
Evaluate `|[x, x+1],[ x-1, x]|` |Class 12 MATH | Doubtnut2:05Evaluate `|[x, x+1],[ x-1, x]|` |Class 12 MATH | Doubtnut
Evaluate `|[x, x+1],[ x-1, x]|` |Class 12 MATH | Doubtnut
zhlédnutí 12Před 2 lety
Evaluate `|[x, x 1],[ x-1, x]|` Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking a Picture of Doubt on Doubtnut App and Get Instant Video...
There are 200 individuals with a skin disorder, 120 had been exposed to |Class 11 MATH | Doubtnut2:56There are 200 individuals with a skin disorder, 120 had been exposed to |Class 11 MATH | Doubtnut
There are 200 individuals with a skin disorder, 120 had been exposed to |Class 11 MATH | Doubtnut
zhlédnutí 200Před 2 lety
There are 200 individuals with a skin disorder, 120 had been exposed to the chemical A, 50 to chemical B and 30 to both chemical A and B, Find the number of individuals exposed to Chemical A or chemical B. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, ...
Let A={2,4,6,8} and B={6,8,10,12 }. Find `A uu B`. |Class 11 MATH | Doubtnut2:06Let A={2,4,6,8} and B={6,8,10,12 }. Find `A uu B`. |Class 11 MATH | Doubtnut
Let A={2,4,6,8} and B={6,8,10,12 }. Find `A uu B`. |Class 11 MATH | Doubtnut
zhlédnutí 11Před 2 lety
Let A={2,4,6,8} and B={6,8,10,12 }. Find `A uu B`. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking a Picture of Doubt on Doubtnut App an...
Plot the points represented by the complex numbers 1+i, 2+i, 2+3i, 1+3i |Class 11 MATH | Doubtnut3:01Plot the points represented by the complex numbers 1+i, 2+i, 2+3i, 1+3i |Class 11 MATH | Doubtnut
Plot the points represented by the complex numbers 1+i, 2+i, 2+3i, 1+3i |Class 11 MATH | Doubtnut
zhlédnutí 8Před 2 lety
Plot the points represented by the complex numbers 1 i, 2 i, 2 3i, 1 3i Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking a Picture of Dou...
Consider the following system of linear equations, `x+y+z=6`,|Class 12 MATH | Doubtnut9:11Consider the following system of linear equations, `x+y+z=6`,|Class 12 MATH | Doubtnut
Consider the following system of linear equations, `x+y+z=6`,|Class 12 MATH | Doubtnut
zhlédnutí 24Před 2 lety
Consider the following system of linear equations, `x y z=6`,`x-y z=2`, `2x y z=1` Find the value of x,y and z satisfying the above equation. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Leve...
How would you determine the standard electrode potential of the |Class 12 CHEMISTRY | Doubtnut3:05How would you determine the standard electrode potential of the |Class 12 CHEMISTRY | Doubtnut
How would you determine the standard electrode potential of the |Class 12 CHEMISTRY | Doubtnut
zhlédnutí 54Před 2 lety
How would you determine the standard electrode potential of the system (Mg^(2 ) )/ Mg ? Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking ...
a problem in mathematics is given to 3 students whose chances of |Class 11 MATH | Doubtnut4:02a problem in mathematics is given to 3 students whose chances of |Class 11 MATH | Doubtnut
a problem in mathematics is given to 3 students whose chances of |Class 11 MATH | Doubtnut
zhlédnutí 88Před 2 lety
a problem in mathematics is given to 3 students whose chances of solving individually are `1/2,1/3,1/4`.Find the probability that the problem will be solved atleast by one. Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (u...
Differentiate w.r.t x the functions `cot ^(-1)[(sqrt(1+sin x)+sqrt(1-sin |Class 12 MATH | Doubtnut6:02Differentiate w.r.t x the functions `cot ^(-1)[(sqrt(1+sin x)+sqrt(1-sin |Class 12 MATH | Doubtnut
Differentiate w.r.t x the functions `cot ^(-1)[(sqrt(1+sin x)+sqrt(1-sin |Class 12 MATH | Doubtnut
zhlédnutí 25Před 2 lety
Differentiate w.r.t x the functions `cot ^(-1)[(sqrt(1 sin x) sqrt(1-sin x))/(sqrt(1 sin x)-sqrt(1-sin x))]` Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Q...
Find the sum to n terms of the series: `5+11+19+29+41`..... |Class 11 MATH | Doubtnut4:46Find the sum to n terms of the series: `5+11+19+29+41`..... |Class 11 MATH | Doubtnut
Find the sum to n terms of the series: `5+11+19+29+41`..... |Class 11 MATH | Doubtnut
zhlédnutí 1,8KPřed 2 lety
Find the sum to n terms of the series: `5 11 19 29 41`..... Welcome to Doubtnut. Doubtnut is World’s Biggest Platform for Video Solutions of Physics, Chemistry, Math and Biology Doubts with over 5 Lakh Video Solutions. Doubtnut is a Q&A App for Math, Physics, Chemistry and Biology (up to JEE Advanced and NEET Level), Where You Can Ask Unlimited Questions by Clicking a Picture of Doubt on Doubtn...
From the sets given below, select equal sets:A={2,4,8,12}, B={1,2,3,4}, |Class 11 MATH | Doubtnut4:27From the sets given below, select equal sets:A={2,4,8,12}, B={1,2,3,4}, |Class 11 MATH | Doubtnut
From the sets given below, select equal sets:A={2,4,8,12}, B={1,2,3,4}, |Class 11 MATH | Doubtnut
zhlédnutí 32Před 2 lety
From the sets given below, select equal sets:A={2,4,8,12}, B={1,2,3,4}, |Class 11 MATH | Doubtnut
"Which of the following compounds shows geometrical isomerism? |Class 11 CHEMISTRY | Doubtnut6:16"Which of the following compounds shows geometrical isomerism? |Class 11 CHEMISTRY | Doubtnut
"Which of the following compounds shows geometrical isomerism? |Class 11 CHEMISTRY | Doubtnut
zhlédnutí 8Před 2 lety
"Which of the following compounds shows geometrical isomerism? |Class 11 CHEMISTRY | Doubtnut
The mole fraction of water in a mixture containing equal number of |Class 12 CHEMISTRY | Doubtnut2:10The mole fraction of water in a mixture containing equal number of |Class 12 CHEMISTRY | Doubtnut
The mole fraction of water in a mixture containing equal number of |Class 12 CHEMISTRY | Doubtnut
zhlédnutí 362Před 2 lety
The mole fraction of water in a mixture containing equal number of |Class 12 CHEMISTRY | Doubtnut
A and B are two events such that `P(A)=1/5` and `P(AuuB)=2/5` Find P(B)|Class 12 MATH | Doubtnut3:20A and B are two events such that `P(A)=1/5` and `P(AuuB)=2/5` Find P(B)|Class 12 MATH | Doubtnut
A and B are two events such that `P(A)=1/5` and `P(AuuB)=2/5` Find P(B)|Class 12 MATH | Doubtnut
zhlédnutí 8Před 2 lety
A and B are two events such that `P(A)=1/5` and `P(AuuB)=2/5` Find P(B)|Class 12 MATH | Doubtnut
" Let `R` be the relation on the set `Z` of all integers defined by `R={ |Class 11 MATH | Doubtnut9:23" Let `R` be the relation on the set `Z` of all integers defined by `R={ |Class 11 MATH | Doubtnut
" Let `R` be the relation on the set `Z` of all integers defined by `R={ |Class 11 MATH | Doubtnut
zhlédnutí 4Před 2 lety
" Let `R` be the relation on the set `Z` of all integers defined by `R={ |Class 11 MATH | Doubtnut
How many numbers lying between: 100 and 1000 can be formed with |Class 11 MATH | Doubtnut4:26How many numbers lying between: 100 and 1000 can be formed with |Class 11 MATH | Doubtnut
How many numbers lying between: 100 and 1000 can be formed with |Class 11 MATH | Doubtnut
zhlédnutí 71Před 2 lety
How many numbers lying between: 100 and 1000 can be formed with |Class 11 MATH | Doubtnut
"Convert the following into basic units: i. 28.7pm ii. 15.15pm |Class 11 CHEMISTRY | Doubtnut2:58"Convert the following into basic units: i. 28.7pm ii. 15.15pm |Class 11 CHEMISTRY | Doubtnut
"Convert the following into basic units: i. 28.7pm ii. 15.15pm |Class 11 CHEMISTRY | Doubtnut
zhlédnutí 20Před 2 lety
"Convert the following into basic units: i. 28.7pm ii. 15.15pm |Class 11 CHEMISTRY | Doubtnut
Sum of two numbers is 25. The difference is 10. Find the numbers. |Class 9 Math |Doubtnut3:01Sum of two numbers is 25. The difference is 10. Find the numbers. |Class 9 Math |Doubtnut
Sum of two numbers is 25. The difference is 10. Find the numbers. |Class 9 Math |Doubtnut
zhlédnutí 15Před 2 lety
Sum of two numbers is 25. The difference is 10. Find the numbers. |Class 9 Math |Doubtnut
Prove that `(1+costheta+sintheta)/(1-costheta+sintheta)=cot(theta/2)` |Class 11 MATH | Doubtnut6:43Prove that `(1+costheta+sintheta)/(1-costheta+sintheta)=cot(theta/2)` |Class 11 MATH | Doubtnut
Prove that `(1+costheta+sintheta)/(1-costheta+sintheta)=cot(theta/2)` |Class 11 MATH | Doubtnut
zhlédnutí 21Před 2 lety
Prove that `(1 costheta sintheta)/(1-costheta sintheta)=cot(theta/2)` |Class 11 MATH | Doubtnut
Show that the relation R in R defined as R=`{(a,b):aleb}` is reflexive |Class 12 MATH | Doubtnut6:17Show that the relation R in R defined as R=`{(a,b):aleb}` is reflexive |Class 12 MATH | Doubtnut
Show that the relation R in R defined as R=`{(a,b):aleb}` is reflexive |Class 12 MATH | Doubtnut
zhlédnutí 3Před 2 lety
Show that the relation R in R defined as R=`{(a,b):aleb}` is reflexive |Class 12 MATH | Doubtnut
How much energy is réquired to ionise a 'H' atom if the electron |Class 11 CHEMISTRY | Doubtnut2:52How much energy is réquired to ionise a 'H' atom if the electron |Class 11 CHEMISTRY | Doubtnut
How much energy is réquired to ionise a 'H' atom if the electron |Class 11 CHEMISTRY | Doubtnut
zhlédnutí 7Před 2 lety
How much energy is réquired to ionise a 'H' atom if the electron |Class 11 CHEMISTRY | Doubtnut
If `cot alpha cot beta=2`, show that `(cos (alpha+beta))/(cos (alpha-beta |Class 11 MATH | Doubtnut4:05If `cot alpha cot beta=2`, show that `(cos (alpha+beta))/(cos (alpha-beta |Class 11 MATH | Doubtnut
If `cot alpha cot beta=2`, show that `(cos (alpha+beta))/(cos (alpha-beta |Class 11 MATH | Doubtnut
zhlédnutí 72Před 2 lety
If `cot alpha cot beta=2`, show that `(cos (alpha beta))/(cos (alpha-beta |Class 11 MATH | Doubtnut
If the 'sum of first `m` terms of an `A . P`. be `n` and the sum of first |Class 12 MATH | Doubtnut7:20If the 'sum of first `m` terms of an `A . P`. be `n` and the sum of first |Class 12 MATH | Doubtnut
If the 'sum of first `m` terms of an `A . P`. be `n` and the sum of first |Class 12 MATH | Doubtnut
zhlédnutí 1Před 2 lety
If the 'sum of first `m` terms of an `A . P`. be `n` and the sum of first |Class 12 MATH | Doubtnut
Find the intervals in which the function `f(x)=4x^3-6x^2-72x+30` is |Class 12 MATH | Doubtnut6:00Find the intervals in which the function `f(x)=4x^3-6x^2-72x+30` is |Class 12 MATH | Doubtnut
Find the intervals in which the function `f(x)=4x^3-6x^2-72x+30` is |Class 12 MATH | Doubtnut
zhlédnutí 83Před 2 lety
Find the intervals in which the function `f(x)=4x^3-6x^2-72x 30` is |Class 12 MATH | Doubtnut
The value of the determinant `abs[[sin10,-cos10],[sin80,cos80]]`is |Class 12 MATH | Doubtnut3:02The value of the determinant `abs[[sin10,-cos10],[sin80,cos80]]`is |Class 12 MATH | Doubtnut
The value of the determinant `abs[[sin10,-cos10],[sin80,cos80]]`is |Class 12 MATH | Doubtnut
zhlédnutí 56Před 2 lety
The value of the determinant `abs[[sin10,-cos10],[sin80,cos80]]`is |Class 12 MATH | Doubtnut
Verify Property 1 for `Delta=|[2 ,-3, 5],[ 6, 0, 4],[ 1, 5, -7]|` |Class 12 MATH | Doubtnut6:55Verify Property 1 for `Delta=|[2 ,-3, 5],[ 6, 0, 4],[ 1, 5, -7]|` |Class 12 MATH | Doubtnut
Verify Property 1 for `Delta=|[2 ,-3, 5],[ 6, 0, 4],[ 1, 5, -7]|` |Class 12 MATH | Doubtnut
zhlédnutí 4Před 2 lety
Verify Property 1 for `Delta=|[2 ,-3, 5],[ 6, 0, 4],[ 1, 5, -7]|` |Class 12 MATH | Doubtnut

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