Video není dostupné.
Omlouváme se.
Determine the force in the spring CD in the relay
Vložit
- čas přidán 10. 01. 2020
- Get the book here: amzn.to/2py6FIn
More videos: www.forthesakeofeducation.com
Become my official student: / daxterbels
The relay regulates voltage and current. Determine
the force in the spring CD, which has a stiffness of k = 120 N/m,
so that it will allow the armature to make contact at A
in figure (a) with a vertical force of 0.4 N. Also, determine the
force in the spring when the coil is energized and attracts
the armature to E, figure (b), thereby breaking contact at A.
Sir why FA is downward.
this prob was rea lhard for me thxx
Why didn't you use the angle of 10 degrees for both FA and Fs when getting the sum of MB?
in the exam, maybe it can be necessary but it doesnt't effect the final answer because we must multiply the both sides so they simplify each other