Question

what is ammeter and voltmeter​

Answer 1

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A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit.

An ammeter is a measuring device used to measure the electric current in a circuit.

Answer 2

An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit.