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Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity1 Mark
MCQ
Which of the following represents voltage?
  • ✓
    $\frac{\text{Work done}}{\text{Current}\times\text{Time}}$
  • B
    $\text{Work done}\times\text{Charge}$
  • C
    $\frac{\text{Work done}\times\text{Time}}{\text{Current}}$
  • D
    $\text{Work done}\times\text{Charge}\times\text{Time}$
✓

Answer

Correct option: A.
$\frac{\text{Work done}}{\text{Current}\times\text{Time}}$
Work done $\times $ Charge $\times $ Potential difference
$\Rightarrow $ Work done $= \ ($Current $\times $ Time$)\ \times $ Potential difference $[\because$ Charge $=$ Current $\times $ Time$]$
$\Rightarrow $ Potential difference $=\frac{\text{Work done}}{\text{Current}\times\text{Time}}$

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