If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is th

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Question: If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is the power consumed?

Options:

Correct Answer: 72 W

Solution:

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

If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is the power consumed?

If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is the power consumed?

Step 1: Identify the total voltage (V) in the circuit, which is given as 24 volts.
Step 2: Identify the total resistance (R) in the circuit, which is given as 8 ohms.
Step 3: Use the formula for power (P) in a circuit, which is P = V^2 / R.
Step 4: Substitute the values into the formula: P = (24V)^2 / 8Ω.
Step 5: Calculate (24V)^2, which is 576.
Step 6: Divide 576 by 8Ω to find the power: 576 / 8 = 72.
Step 7: Conclude that the power consumed in the circuit is 72 watts.

Ohm's Law and Power Calculation – Understanding the relationship between voltage, resistance, and power in electrical circuits.