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13 May, 23:54

Calculate the electrical energy expended in a device across which the circuit voltage drops by 40.0 volts in moving a charge of 2 coulombs.

A) 20

B) 80

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Answers (1)
  1. 14 May, 00:23
    0
    Electrical energy = Q x V

    Energy = 2 x 40

    = 80

    The correct answer is B.
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