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

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ISRO VSSC Technical Assistant Electronics 2018 Official Paper
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  1. 6.2 mJ
  2. 90 J
  3. 10 J
  4. 0.695 mJ

Answer (Detailed Solution Below)

Option 2 : 90 J
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Detailed Solution

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Concept:

Potential difference or voltage (V) is given by

\(V = \frac{W}{Q}\)

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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