Upon configuring a PMMC (Permanent Magnet Moving Coil) as an ammeter, a shunt resistor is connected to it, to adjust the range of measurement. The value of the shunt resistor depends on the current ...
The current coil of wattmeter is connected in series with an ammeter and an inductive load. A voltmeter and the voltage circuit of the wattmeter are connected across a 400-Hz supply. The ammeter ...