what is principle of voltmeter amd ammeter
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"Working Princpal of Voltmeter" .The main working of Voltmeter is that is must be connected in parallel in which we want to measure the voltage. Parallel connection is used because Voltmeter is constructed in such a way that it has a very high value of resistance.
The main principal of Ammeter is that it must have a very low resistance and also inductive reactance. It has very low impedance because it must very low amount of voltage drop cross it and must be connected in series connection because current is same in the series circuit.
The main principal of Ammeter is that it must have a very low resistance and also inductive reactance. It has very low impedance because it must very low amount of voltage drop cross it and must be connected in series connection because current is same in the series circuit.
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