Subject :NSO Class : Class 7
An electric kiln has a device in it to prevent the kiln from getting too hot. The metals in the bimetallic strips expand at different rates and bend when heated. The contact points move apart and electric current stops flowing.
This device works when, _______.
AQ expands more than R, and P expands more than S
BR expands more than S, and Q expands more than P
CP expands more than Q, and R expands more than S
DP expands more than R, and S expands more than Q
Can someone explain this question with diagram?
Ans 1:
Class : Class 8
option B because of expansion the contact point get diverted
Ans 2:
Class : Class 8
option B because of expansion the contact point get diverted
Ans 3:
Class : Class 8