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In electromagnetic induction, the induced e.m.f. in a coil is independent of
Lenz's law is consequence of the law of conservation of
In electromagnetic induction, the induced charge in a coil is independent of
The magnetic flux through a circuit of resistance $R$ changes by an amount $\Delta \varphi $ in time $\Delta t$, Then the total quantity of electric charge $Q$, which passing during this time through any point of the circuit is given by
A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then
A metallic ring is attached with the wall of a room. When the north pole of a magnet is brought near to it, the induced current in the ring will beQuestion Image
A coil having an area ${A_0}$ is placed in a magnetic field which changes from ${B_0}$to $4{B_0}$ in a time interval t. The e.m.f. induced in the coil will be
The magnetic flux linked with a coil is given by an equation $\varphi $ (in webers) = $8{t^2} + 3t + 5$. The induced e.m.f. in the coil at the fourth second will be
The current flowing in two coaxial coils in the same direction. On increasing the distance between the two, the electric current will
A copper ring is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet while it is passing through the ring is

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