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T5D04
What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?
Pick an answer to check it.
Answer: B. 30 ohms
Use R = E / I. Step: R = 90 V / 3 A = 30 ohms. Multiplying (270) is a common mistake.
Tip: R = E / I.