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If a circuit has a current of 5 A and a resistance of 10 Ω, what is the power co

Practice Questions

Q1
If a circuit has a current of 5 A and a resistance of 10 Ω, what is the power consumed in the circuit?
  1. 50 W
  2. 25 W
  3. 10 W
  4. 5 W

Questions & Step-by-Step Solutions

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