In a purely resistive AC circuit, what is the phase difference between voltage a

Practice Questions

Q1
In a purely resistive AC circuit, what is the phase difference between voltage and current?
  1. 0 degrees
  2. 90 degrees
  3. 180 degrees
  4. 45 degrees

Questions & Step-by-Step Solutions

In a purely resistive AC circuit, what is the phase difference between voltage and current?
  • Step 1: Understand what a purely resistive AC circuit is. It means the circuit only has resistors and no capacitors or inductors.
  • Step 2: Know that in an AC circuit, voltage and current can be out of phase, which means they can reach their maximum and minimum values at different times.
  • 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 reach their maximum and minimum values together, this means they are in phase.
  • Step 5: When two waveforms are in phase, the phase difference between them is 0 degrees.
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