In a pure resistor circuit, the voltage and current are:
Correct answer: C. Zero phase difference
- A. Lagging each other
- B. At a 90° phase difference
- C. Zero phase difference
- D. No phase difference
Explanation
In a pure resistor circuit, the voltage and current are in phase with each other. This means that they have zero phase difference. The voltage and current waveforms reach their maximum and minimum values at the same time.- (a) Lagging each other: This is not correct. In a pure resistor circuit, voltage and current are in phase and do not lag or lead each other.- (b) At a 90° phase difference: This is not correct. The correct phase difference in a pure resistor circuit is zero degrees.- (c) Zero phase difference: Correct. In a pure resistor circuit, voltage and current are in phase, resulting in zero phase difference.- (d) No phase difference: This is essentially the same as option (c) and is correct. In a pure resistor circuit, there is no phase difference between voltage and current.So, the correct answer is (c) Zero phase difference or (d) No phase difference.
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