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A parallel plate capacitor is filled with two dielectrics as shown in figure. If A is area of each plate, then the effective capacitance between X and Y is

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Important Questions on Capacitance

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An insulator plate is passed between the plates of a capacitor. Then current

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A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
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In the adjoining diagram, two geometrically identical capacitors A and B are connected to a battery. Air is filled between the plates of C1 and a dielectric is filled between the plates of C2, then

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The electric field between two parallel plates of a capacitor is 2.1×10-5NC-1. If a medium is inserted between the plates than the electric field becomes 10×10-5NC-1. Now, the value of dielectric will be
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The capacity of a parallel plate condenser without any dielectric is C. If the distance between the plates is doubled and the space between the plates is filled with a substance of dielectric constant 3, the capacity of then condenser becomes:
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A quantity X is given by ε0LΔVΔt, where ε0 is the permittivity of the free space, L is the length, ΔV is the potential difference and Δt is the time interval. The dimensional formula of X is same as that of
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When a current flows through a conductor, its temperature
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The electric current passes through a metallic wire produces heat because of