The potential across the circuit is 480 volts and the current is 50 amps. What is the resistance?

Prepare for the NCCR Electrical Exam. Study using flashcards and multiple choice questions, each with hints and explanations. Get exam-ready today!

Multiple Choice

The potential across the circuit is 480 volts and the current is 50 amps. What is the resistance?

Explanation:
Ohm's law shows how resistance connects voltage and current: R = V / I. With 480 volts and 50 amperes, the resistance is 480 ÷ 50 = 9.6 ohms. The other numbers would come from different currents, so they don’t match the given current. The resistance is 9.6 ohms.

Ohm's law shows how resistance connects voltage and current: R = V / I. With 480 volts and 50 amperes, the resistance is 480 ÷ 50 = 9.6 ohms. The other numbers would come from different currents, so they don’t match the given current. The resistance is 9.6 ohms.

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