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Question: Answered & Verified by Expert
A fully charged capacitor has a capacitance ' $C$ ' it is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity ' $s$ ' and mass ' $\mathrm{m}$ '. If the temperature of the block is raised by ' $\Delta \mathrm{T}$ '. The potential difference $V$ across the capacitance is
PhysicsCapacitanceJEE MainJEE Main 2005
Options:
  • A
    $\sqrt{\frac{2 m C \Delta T}{s}}$
  • B
    $\frac{\mathrm{mC} \Delta \mathrm{T}}{\mathrm{s}}$
  • C
    $\frac{\mathrm{ms} \Delta \mathrm{T}}{\mathrm{c}}$
  • D
    $\sqrt{\frac{2 m s \Delta T}{C}}$
Solution:
2008 Upvotes Verified Answer
The correct answer is:
$\sqrt{\frac{2 m s \Delta T}{C}}$
Dimensionally only $4^{\text {th }}$ option is correct.

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