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What is the total power dissipated in a circuit with a 24V source and a total re

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Question: What is the total power dissipated in a circuit with a 24V source and a total resistance of 8Ω?

Options:

  1. 48W
  2. 72W
  3. 96W
  4. 12W

Correct Answer: 48W

Solution: 

Power P = V^2 / R = 24V^2 / 8Ω = 576 / 8 = 72W.

What is the total power dissipated in a circuit with a 24V source and a total re

Practice Questions

Q1
What is the total power dissipated in a circuit with a 24V source and a total resistance of 8Ω?
  1. 48W
  2. 72W
  3. 96W
  4. 12W

Questions & Step-by-Step Solutions

What is the total power dissipated in a circuit with a 24V source and a total resistance of 8Ω?
  • Step 1: Identify the voltage (V) in the circuit. In this case, V = 24 volts.
  • Step 2: Identify the total resistance (R) in the circuit. Here, R = 8 ohms.
  • Step 3: Use the power formula P = V^2 / R to calculate the power.
  • Step 4: Calculate V^2, which is 24V * 24V = 576.
  • Step 5: Divide the result from Step 4 by the resistance (R). So, 576 / 8 = 72.
  • Step 6: The total power dissipated in the circuit is 72 watts.
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