PhysicsHardHigh School (11–12)Electricity & Magnetism › Electric Potential and CapacitanceNEETAEEE (Amrita)AMUEEEAP EAPCETBCECECMI Entrance
Created by StemPy LabAssertion (A): A capacitor and an capacitor are joined in series across a battery. The capacitor stores more energy than the capacitor. Reason (R): In a series combination every capacitor carries the same charge, and the energy stored in a capacitor of charge is .
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← Two charged conducting spheres, of radii R and 3R, are joined by a long thin wire and left until no charge flows. Two statements about the spheres are given below. Statement I: The charges on the spheres end up in the ratio 1:9, in proportion to their surface areas. Statement II: The field just outside the smaller sphere is one third of the field just outside the larger sphere.Assertion (A): A thin ring carries a uniformly distributed positive charge Q. The electric potential at the centre of the ring is not zero. Reason (R): The electric field at the centre of the ring is zero, because the field of every small element is cancelled by the field of the element diametrically opposite to it. →
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