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Which of the following represents voltage?

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Question

Which of the following represents voltage?

Options

  • `("Work done")/("Current" xx "Time")`

  • Work done × Charge

  • `("Work done" xx "Time")/"Current"`

  • Work done × Charge × Time

MCQ
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Solution

`("Work done")/("Current" xx "Time")`

Explanation -

Potential difference (V) is defined as the ratio of work done (W) and charge (Q).

`"V" = "W"/"Q"`

Q = i × t

Charge is defined as 

Q = i × t

where i = current 
t = time

So,

`"V" = "W"/("i" xx "t")`

`"Voltage" = ("Work done")/("Current" xx "Time")`

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Chapter 12: Electricity - Multiple Choice Questions [Page 92]

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NCERT Exemplar Science Exemplar Class 10
Chapter 12 Electricity
Multiple Choice Questions | Q 9. | Page 92

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