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What is the phase difference between the voltage and current in a resistive AC c

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Question: What is the phase difference between the voltage and current in a resistive AC circuit? (2021)

Options:

  1. 0°
  2. 45°
  3. 90°
  4. 180°

Correct Answer: 0°

Exam Year: 2021

Solution: 

In a purely resistive circuit, the voltage and current are in phase, so the phase difference is 0°.

What is the phase difference between the voltage and current in a resistive AC c

Practice Questions

Q1
What is the phase difference between the voltage and current in a resistive AC circuit? (2021)
  1. 0°
  2. 45°
  3. 90°
  4. 180°

Questions & Step-by-Step Solutions

What is the phase difference between the voltage and current in a resistive AC circuit? (2021)
  • Step 1: Understand what a resistive AC circuit is. It is a circuit that only has resistors and no capacitors or inductors.
  • Step 2: Know that in an AC circuit, voltage and current can be out of sync, which is called phase difference.
  • Step 3: In a purely resistive circuit, the voltage and current reach their maximum and minimum values at the same time.
  • Step 4: Since they are in sync, the phase difference between voltage and current is 0°.
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