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A circuit has a current of 5A and a resistance of 10Ω. What is the power consume

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Question: A circuit has a current of 5A and a resistance of 10Ω. What is the power consumed in the circuit? (2020)

Options:

  1. 25W
  2. 50W
  3. 75W
  4. 100W

Correct Answer: 50W

Exam Year: 2020

Solution: 

Power (P) can be calculated using P = I^2 * R = (5A)^2 * 10Ω = 25 * 10 = 250W.

A circuit has a current of 5A and a resistance of 10Ω. What is the power consume

Practice Questions

Q1
A circuit has a current of 5A and a resistance of 10Ω. What is the power consumed in the circuit? (2020)
  1. 25W
  2. 50W
  3. 75W
  4. 100W

Questions & Step-by-Step Solutions

A circuit has a current of 5A and a resistance of 10Ω. What is the power consumed in the circuit? (2020)
  • Step 1: Identify the current (I) in the circuit, which is given as 5A.
  • Step 2: Identify the resistance (R) in the circuit, which is given as 10Ω.
  • Step 3: Use the formula for power (P), which is P = I^2 * R.
  • Step 4: Substitute the values into the formula: P = (5A)^2 * 10Ω.
  • Step 5: Calculate (5A)^2, which is 25.
  • Step 6: Multiply 25 by 10Ω to get the power: 25 * 10 = 250W.
  • Step 7: Conclude that the power consumed in the circuit is 250W.
  • Ohm's Law and Power Calculation – Understanding the relationship between current, resistance, and power in electrical circuits.
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