Multiple choice

Calculate the current if the potential difference is increased to 120 V from 60 V with a current of 4 A from the source of a series circuit.

  1. 8 A

  2. 0.5 A

  3. 28,800 A

  4. 2 A

  5. 0.125 A
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A Correct answer
Explanation

V1 = 60 V, I1 = 4 A, R = V1/I1 = 60/4 = 15 ohms V2 = 120 V, R = 15 ohms I2 = V2/R = 120/15 = 8 A

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