In the circuit shown in the figure the resistance of the voltmeter is 6 K Ω. The voltmeter reading will be:
Correct answer: B. 5V
- A. 6V
- B. 5V
- C. 4V
- D. 3V
Explanation
To determine the correct voltmeter reading, we must consider the voltmeter's internal resistance of 6 K Ω. This resistance affects the circuit by creating a voltage divider that impacts the actual reading. After analyzing the circuit with this resistance in mind, the voltmeter will accurately read 5V. The other options (6V, 4V, and 3V) fail to account for this resistance properly, leading to incorrect readings.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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