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Electrostatics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
MCQ
 A variable condenser is permanently connected to a $100 V$ battery. If the capacity is changed from $2\mu F$ to $10\ \mu F,$ then change in energy is equal to
  • A
    $2 \times 10^{-2} J$
  • B
    $2.5 \times 10^{-2} J$
  • C
    $3.5 \times 10^{-2} J$
  • ✓
    $4 \times 10^{-2} J$
✓

Answer

Correct option: D.
$4 \times 10^{-2} J$
$4 \times 10^{-2} J$

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