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If the total power in a circuit is 100W and the power factor is 0.8, what is the

Practice Questions

Q1
If the total power in a circuit is 100W and the power factor is 0.8, what is the apparent power?
  1. 80VA
  2. 100VA
  3. 125VA
  4. 200VA

Questions & Step-by-Step Solutions

If the total power in a circuit is 100W and the power factor is 0.8, what is the apparent power?
  • Step 1: Understand the terms. Total power (P) is given as 100W and the power factor is 0.8.
  • Step 2: Know the formula for apparent power (S). It is S = P / power factor.
  • Step 3: Substitute the values into the formula. Here, P = 100W and power factor = 0.8.
  • Step 4: Calculate the apparent power. S = 100W / 0.8.
  • Step 5: Perform the division. 100 divided by 0.8 equals 125.
  • Step 6: Write the final answer. The apparent power is 125VA.
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