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BITSAT Physics Capacitance 2023 BITSAT 2023 (Memory Based Paper 1)

BITSAT Physics Question (2023) — Solution

Question

The work done in placing a charge of 8 10^ -18 coulomb on a condenser of capacity 100 microfarad is

Options

  1. A. 3.1 10^ -26 joule
  2. B. 4 10^ -10 joule
  3. C. 32 10^ -32 joule
  4. D. 16 10^ -32 joule

Answer

C. 32 10^ -32 joule

Step-by-step solution

Work done = 1 2 q ^2 C = (8 10^ -18 )^2 2 100 10^ -6 =32 10^ -32 ~J

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