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What is the power consumed in an AC circuit with a voltage of 230V and a current

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Question: What is the power consumed in an AC circuit with a voltage of 230V and a current of 5A with a power factor of 0.8? (2023)

Options:

  1. 920W
  2. 1150W
  3. 115W
  4. 460W

Correct Answer: 920W

Solution: 

Power = V × I × Power Factor = 230V × 5A × 0.8 = 920W.

What is the power consumed in an AC circuit with a voltage of 230V and a current

Practice Questions

Q1
What is the power consumed in an AC circuit with a voltage of 230V and a current of 5A with a power factor of 0.8? (2023)
  1. 920W
  2. 1150W
  3. 115W
  4. 460W

Questions & Step-by-Step Solutions

What is the power consumed in an AC circuit with a voltage of 230V and a current of 5A with a power factor of 0.8? (2023)
  • Step 1: Identify the voltage in the circuit, which is 230V.
  • Step 2: Identify the current in the circuit, which is 5A.
  • Step 3: Identify the power factor, which is 0.8.
  • Step 4: Use the formula for power in an AC circuit: Power = Voltage × Current × Power Factor.
  • Step 5: Substitute the values into the formula: Power = 230V × 5A × 0.8.
  • Step 6: Calculate the result: 230 × 5 = 1150, then 1150 × 0.8 = 920.
  • Step 7: The power consumed in the circuit is 920W.
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