022 What is the resistance of an ammeter?
Q23 What is the resistance of a Voltmeter?
Answers
Answer:
Consequently an ideal voltmeter will have infinite resistance. An ammeter is connected in series with the circuit to be measured. The ideal ammeter will have zero resistance so as not to disturb the circuit.
The internal resistance of an ideal voltmeter is infinity and the internal resistance of an ideal ammeter is zero. Ammeter is connected in series and voltmeter is connected in parallel with the electric appliance.
Explanation:
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Answer:
Ans1) The resistance of an ammeter should be low. An ammeter has to be connected in series with the circuit to measure current. In case, its resistance is not very low, its inclusion in the circuit will reduce the current to be measured.
Ans2). Voltmeter is used to measure the potential difference across the two points of a circuit.
The voltmeter is connected in parallel across those two points to measure potential difference.
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