Question

Calculate the electrical energy expended in a device across which the circuit voltage drops by 20.0 volts in moving a charge of 4 coulombs.

A)5 J
B)80 J
C)0.2 J

Answer 1

The answer is 80 Joules

Step-by-step explanation:

Electrical energy = Q x V

Energy = 2 x 40

= 80

I just took the test and it was right :D

The correct answer is B.

I hope this helped! :D