If V = 9 V and I = 3 A, what is the resistance R?

Prepare for the NCCER Introduction to Electrical Circuits Test. Study with engaging flashcards and interactive multiple choice questions, each with hints and thorough explanations. Ace your exam with confidence!

Multiple Choice

If V = 9 V and I = 3 A, what is the resistance R?

Explanation:
Understanding how Ohm's Law relates voltage, current, and resistance helps here. Ohm's Law states V = I × R, so to find resistance, use R = V ÷ I. With V = 9 volts and I = 3 amperes, R = 9 ÷ 3 = 3 ohms. A quick check: I × R = 3 A × 3 Ω = 9 V, which matches the given voltage. The resistance is 3 ohms.

Understanding how Ohm's Law relates voltage, current, and resistance helps here. Ohm's Law states V = I × R, so to find resistance, use R = V ÷ I. With V = 9 volts and I = 3 amperes, R = 9 ÷ 3 = 3 ohms. A quick check: I × R = 3 A × 3 Ω = 9 V, which matches the given voltage. The resistance is 3 ohms.

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