Measurements and Instrumentation

Assertion (A): When a wattmeter is used for low impedance loads, the pressure coil is connected across the load. Reason (R): A wattmeter measures apparent power.

A Both A and R are true and R is correct explanation of A

B Both A and R are true but R is not correct explanation of A

C A is true R is false

D A is false R is true

ANS:C - A is true R is false

Wattmeter measures active power.

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