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A voltmeter needs to have high resistance to avoid drawing current from the circuit, while an ammeter requires low resistance to ensure minimal impact on current flow.
Updated On: Oct 8, 2025
- A voltmeter should have small resistance
- A voltmeter should have large resistance
- An ammeter should have large resistance
- An ammeter should have small resistance but it should be greater than the resistance of galvanometer
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The Correct Option is B
Solution and Explanation
Step 1: Voltmeter Resistance.
A voltmeter is connected in parallel with the component to measure the potential difference across it. To prevent drawing too much current, a voltmeter should have a very large resistance.
Step 2: Ammeter Resistance.
An ammeter should have small resistance so that it does not affect the current flowing through the circuit.
Step 3: Conclusion.
Thus, the correct answer is ( A voltmeter should have large resistance.
A voltmeter is connected in parallel with the component to measure the potential difference across it. To prevent drawing too much current, a voltmeter should have a very large resistance.
Step 2: Ammeter Resistance.
An ammeter should have small resistance so that it does not affect the current flowing through the circuit.
Step 3: Conclusion.
Thus, the correct answer is ( A voltmeter should have large resistance.
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