A parallel plate air capacitor is connected to a battery. Its charge, potential difference, electric field and the stored energy between the plates are Q_0,V_0,E_0" and "U_0 respectively. Keeping the battery connection uncharged, the capacitor is completely filled with a dielectric material. The charge, potential difference, electric field and energy stored become Q,V,E and U respectively. Which of the following is correct? E gt E_0.

A parallel plate air capacitor is connected to a battery. Its charge,

1.	A parallel plate air capacitor is connected to a battery. Its charge, potential difference, electric field and the stored energy between the plates are Q_0,V_0,E_0" and "U_0 respectively. Keeping the battery connection uncharged, the capacitor is completely filled with a dielectric material. The charge, potential difference, electric field and energy stored become Q,V,E and U respectively. Which of the following is correct? E gt E_0.
Answer» Solution :Since voltage and DISTANCE between the plates REMAIN CONSTANT, so electric field remains constant. HENCE, `E GT E_0` is not correct.

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