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A circular coil of 500 turns of wire has an enclosed area of $0.1\,{m^2}$ per turn. It is kept perpendicular to a magnetic field of induction 0.2 T and rotated by 180° about a diameter perpendicular to the field in 0.1 sec. How much charge will pass when the coil is connected to a galvanometer with a combined resistance of 50 ohms
A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T. The normal to the plane of the coil makes an angle of 60° with the direction of the magnetic field. The magnetic flux linked with the coil is
In a circuit with a coil of resistance 2 ohms, the magnetic flux changes from 2.0 Wb to 10.0 Wb in 0.2 second. The charge that flows in the coil during this time is
The direction of induced current is such that it opposes the very cause that has produced it. This is the law of
To induce an e.m.f. in a coil, the linking magnetic flux
A solenoid is 1.5 m long and its inner diameter is 4.0 cm. It has three layers of windings of 1000 turns each and carries a current of 2.0 amperes. The magnetic flux for a cross-section of the solenoid is nearly
A coil of $40 \Omega$ resistance has 100 turns and radius 6 mm is connected to ammeter of resistance of 160 ohms. Coil is placed perpendicular to the magnetic field. When coil is taken out of the field, $32 \mu C$ charge flows through it. The intensity of magnetic field will be
Faraday's laws are consequence of conservation of
A magnetic field of $2 \times 10^{– 2} T$ acts at right angles to a coil of area 100 cm2 with 50 turns. The average emf induced in the coil is 0.1 V, when it is removed from the field in time t. The value of t is
The total charge induced in a conducting loop when it is moved in magnetic field depends on

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