Question 221Electricity/Electronics - 1st Asst/Chief70% to pass
To limit the current flow through a DC voltmeter to as low a value as possible, what is the moving coil circuit provided with?
AI Explanation
The correct answer is A) high series resistance.
To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a high series resistance. This high series resistance ensures that only a small fraction of the total circuit current flows through the voltmeter, minimizing the impact on the measured voltage.
The other options are incorrect because: B) high parallel resistance would not limit the current flow through the voltmeter; C) an external shunt is used to measure current, not to limit voltage measurement; and D) a series inductor would not effectively limit the current in a DC circuit.
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