A voltmeter is connected in parallel with a resistor mainly because it should
Aallow maximum current through itself
Bmeasure the same potential difference as across the resistor
Cincrease the resistance of the whole circuit greatly
Dstop current in the resistor
Answer & Solution
Correct answer: B. measure the same potential difference as across the resistor
A voltmeter must read the potential difference across the component, so it is connected in parallel with that component. Its high resistance ensures that it draws very little current and does not significantly disturb the circuit.
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