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

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

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

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.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy