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Lenz’s law of electromagnetic induction corresponds to the law of conservation

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The North-pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of induced current in the conducting plane will

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An infinitely long cylinder is kept parallel to a uniform magnetic field B directed along positive Z-axis. The direction of induced current as seen from the Z-axis will

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The figure shows certain wire segments joined together to form a co-planar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time and `I_1 & I_2` are the currents in the segment `ab & cd`.

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The North-pole of a magnet is falling on a metallic ring as shown in the figure. The direction of induced current, if looked from upside, in the ring will

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A conducting rod of length `l` is falling with a constant velocity `v` perpendicular to a uniform horizontal magnetic field `B`. The potential difference between its two ends will

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A rectangular conductor `SPQR` is placed in a uniform magnetic field perpendicular to the plane and extending from `x=0` to `x=b` as shown below. The arm `PQ` of length `l` is moving from `x=0` to `x=2b` with constant speed `v`. Find the flux and emf induced in the

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The magnitude of the earth’s magnetic field at a place is `B_0` and the angle of dip is `delta`. A horizontal conductor of length `L` lying in magnetic North-South moves eastwards with a velocity `v`. The emf induced across the conductor

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A circular coil of mean radius of 7 cm and having 4000 turns is rotated at the rate of 1800 rev/min in the earth’s magnetic field `(B = 0.5 G)`, the maximum emf induced in coil will

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Eddy currents are produced,

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In induction furnace, heat is produced due

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Which of the following is not an application of eddy

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Amongst the following physical parameter, which is equivalent to

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The self-inductance of a coil having 500 turns is `50 mH`. The magnetic flux through the cross-sectional area of the coil while current through it is 8 mA, is found to

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If emf induced in a coil is `2V` by changing the current in it from `8A` to `6A` in `2 xx 10^(-3) s`, then the coefficient of self-induction

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A long solenoid has 1000 turns. When a current of `4 A` flows through it, the magnetic flux linked with each turn of the solenoid is `4 xx 10^(-3)Wb`. The self-inductance of the solenoid

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A coil and a bulb are connected in series with a DC source, a soft iron core is inserted in the coil, then the intensity of the

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The magnetic potential energy stored in a certain inductor is `25 mJ`, when the current in the inductor is `60 mA`. This inductor is of

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The mutual inductance `M_(12)` of coil 1 with respect to coil

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There are two long co-axial solenoids of same length `l`. The inner & outer coils have radii `r_1 & r_2` and number of turns per unit length `n_1 & n_2`, respectively. The ratio of mutual inductance to the self-inductance of the inner coil

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