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

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Get ready for the NCCER Introduction to Electrical Circuits exam. Study with multiple choice questions, each question comes with hints and explanations. Ace your exam with confidence!

Multiple Choice

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

Explanation:
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.

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