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Electronics and Communication Engineering (ECE) : Measurements and Instrumentation - Quiz(MCQ)
When the moving coil in a Dynamometer type wattmeter deflects ________
A)
current flows
B)
pointer moves
C)
voltage is generated
D)
pointer doesn’t move

Correct Answer : Option (B) :   pointer moves


Explanation : In a Dynamometer type wattmeter, when the moving coil deflects the pointer moves over the scale. The pointer then comes back to rest at a point where the deflecting torque equals the controlling torque.

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