A resistor is connected to a 6 V battery. If the resistance is 3 Ω, what is the current?

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Study for the Abeka Science Matter and Energy Test 7. Enhance your knowledge with flashcards and multiple-choice questions, each with explanations. Get ready for academic success!

Multiple Choice

A resistor is connected to a 6 V battery. If the resistance is 3 Ω, what is the current?

Explanation:
Current is determined by voltage and resistance according to Ohm's law: I = V / R. With a 6 V battery across a 3 Ω resistor, the current is 6 ÷ 3 = 2 amperes. So the result is 2 A, which matches the option listing 2 A. This value wouldn’t match if the resistance were different (0.5 A would need 12 Ω, 1 A would need 6 Ω, 3 A would need 2 Ω), but with 6 V and 3 Ω you indeed get 2 A.

Current is determined by voltage and resistance according to Ohm's law: I = V / R. With a 6 V battery across a 3 Ω resistor, the current is 6 ÷ 3 = 2 amperes. So the result is 2 A, which matches the option listing 2 A. This value wouldn’t match if the resistance were different (0.5 A would need 12 Ω, 1 A would need 6 Ω, 3 A would need 2 Ω), but with 6 V and 3 Ω you indeed get 2 A.

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