In an electrodynamometer type of wattmeter

the current coil is made fixed

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the pressure coil is fixed

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any of the two coil i.e. current coil or pressure coil can be made fixed

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both the coils should be movable

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Solution

The correct option is A the current coil is made fixed
Fixed coil is also called current coil which is fixed and is connected in series with load while moving coil or pressure coil is connected across the load and carries current proportional to voltage.

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Ω

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