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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A dielectric slab is filled in the space between the parallel plte capacitor whose relative permittivity varies as Er = a + bx Find the (a) capacitance of the system ( b) potential at a point situated at a distance x from the origin O.

A dielectric slab is filled in the space between the parallel plte capacitor whose relative permittivity varies as Er = a + bx Find the (a) capacitance of the system ( b) potential at a point situated at a distance x from the origin O.

A capacitor is charged to a potential difference of 100 V and is then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After 1 sec the P.D. between the plates of the capacitor is 80 V. What is the fraction of the stored energy which has been dissipated ?