RRB Group-D Model Paper 11 with answers for online practice

Question : 19 of 100

Marks: +1, -0

The energy required to move a 60-coulomb charge through a potential difference of 1.5 V is

Solution:

Concept:

Potential difference or voltage (V) is given by

{W/Q}

Where,

W = Energy in joule

Q = Charge in coulomb

Also 1 joule / sec = 1 Watt

Calculation:

Potential difference = 1.5 V

Charge = 60 C

Energy required to move 60 C charge: 1.5 x 60 = 90 J

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