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Most Important Selected Qs for JEE AdvancedPhysicsCapacitance

A capacitor of capacitance ' C ' is connected to a battery of emf as shown. After full charging a dielectric of same size as that of capacitor & dielectric constant k is inserted. Then choose the INCORRECT statement(s). (Capacitor remains always connected to battery)

Options

  1. Aelectric field between plates of capacitor remains same
  2. Bcharge on capacitor increases to 2 kC
  3. Cenergy stored in capacitor decreases
  4. Delectric field between plates of capacitor increases

Correct answer

D. electric field between plates of capacitor increases

Step-by-step solution

P.D. same & electric field same Charge will be kC Energy will be 1 / 2 kC ^2

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