Calculate the power in a circuit where the source is 240 V and the current is 10 A.

Calculate the power in a circuit where the source is 240 V and the current is 10 A.

• A. 24,000W
• B. 2,400W
• C. 400W
• D. 240W

Answer: (B)

Power in an electrical circuit is found by multiplying voltage by current. With a 240 V source and 10 A of current, the power is P = V × I = 240 × 10 = 2,400 watts. This is the amount of electrical power being delivered by the source for this setup. The other numbers would require different current or voltage values (for example, 24,000 W would need ten times more current at the same voltage, or a much higher voltage; 400 W would be about 1.67 A at 240 V; 240 W would be 1 A at 240 V), but given the provided values, the correct power is 2,400 watts.

Power in an electrical circuit is found by multiplying voltage by current. With a 240 V source and 10 A of current, the power is P = V × I = 240 × 10 = 2,400 watts. This is the amount of electrical power being delivered by the source for this setup. The other numbers would require different current or voltage values (for example, 24,000 W would need ten times more current at the same voltage, or a much higher voltage; 400 W would be about 1.67 A at 240 V; 240 W would be 1 A at 240 V), but given the provided values, the correct power is 2,400 watts.