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A parallel plate condenser with a dielectric of dielectric constant K between the plates has a capacity C and is charged to a potential ~V ~volts . The dielectric slab is slowly removed from between the plates and then reinserted. The net work done by the system in this process is

Options

  1. A1 / 2( ~K -1) CV ^2
  2. BCV ^2( ~K -1) / K
  3. C( K -1) CV ^2
  4. Dzero

Correct answer

D. zero

Step-by-step solution

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