In a circuit, both an ammeter and a voltmeter are used. what are their purpose

Ammeter : Used to measure current

Voltmeter : Used to measure voltage

Explanation:

As we know that ammeter is connected in series with the branch in which current is to be measured.

When current flow through the ammeter then it is shown by the ammeter.

As we know that voltmeter is connected in parallel to the branch where we need to find the voltage

So voltmeter is used to find the voltage difference in the branch where we need to find the voltage

So here correct answer will be

Ammeter : Used to measure current

Voltmeter : Used to measure voltage

b.

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