The op-amp in low voltage DC voltmeter cannot be nullified due to
A. D’Arsonaval meter movement
B. Offset voltage compensating network
C. Selection of switch
D. Gain of amplifier
Answer:A
The op-amp in low voltage DC voltmeter cannot be nullified due to
A. D’Arsonaval meter movement B. Offset voltage compensating network C. Selection of switch D. Gain of amplifier