Measurement and Instrumentation
It can be stated that

CT operates with a higher flux density than PT
CT operates at almost the same flux density as a PT
No generalisation can be made with regard to the flux densities in CT and PT
CT operates with considerably lower flux density than a PT

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Measurement and Instrumentation
Which of following statement are correct in case of power factor meter?

 It consist of two coils mounted at right angles to each other.
 The deflection is proportional to phase angle between field coil and crossed coil.
 The restoring torque is provided by a controlling torque.
 Both B and C.

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