Discussion :: Measurements and Instrumentation
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Assertion (A): The scale a PMMC ammeter is linear.
Reason (R): The deflecting torque of PMMC is proportional to current in the coil.
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A.
Both A and R are true and R is correct explanation of A
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B.
Both A and R are true but R is not correct explanation of A
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C.
A is true R is false
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D.
A is false R is true
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Answer : Option A
Explanation :
Since the deflecting torque is proportional to current, the scale is linear.
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