Question

Electrodynamic type watt meters have large errors while measuring power in AC circuits at low power factor conditions, since the voltage across and the current through the

• A. current coil are not in phase
• B. current coil not in quadrature
• C. pressure coil are not in phase
• D. pressure coil are not in quadrature

Answer 1

The correct option is C pressure coil are not in phase

pressure coil are not in phase