(a) Explain the mode of operation of a moving-coil meter.
(b) Calculate the reading that would be observed on a moving-coil ammeter when
the current for the waveform shown in Fig. 10.23 is being measured. (The
waveform between ut ¼ p and ut ¼ 2p is the positive half of a sine wave with
a peak current of þ20 amps.)
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