A voltage of 12 V drives a current of 0.5 A. What is the resistance?
Answer and explanation
Correct answer: D. 24 ohms
- Step 1: Resistance = voltage / current. Step 2. 12 / 0.5 = 24 ohms. Answer: 24 ohms. Why not the others: 6 ohms: voltage and current were multiplied. 0.0417 ohms: the ratio was inverted. 11.5 ohms: the current was subtracted from the voltage.
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