The figure represents a thin conducting loop placed in a uniform magnetic field

Question

The figure represents a thin conducting loop placed in a uniform magnetic field directed perpendicular to the plane of the paper and inwards. Some of the following questions pertain to it. (Select True or False). The size of the voltage induced in a coil through which a magnet moves is affected by the strength of the magnet. In Faraday's Law of induction, the induced emf depends on the resistance in the coil or circuit. A current carrying conductor passes through the center of a metal ring in a direction perpendicular to its plane. If the current flowing through the conductor increases, no emf is induced in the ring. If the magnitude of the magnetic field starts decreasing, the resultant induced current (due to the whole loop) flows in the counter-clockwise direction in the right loop. The size of the voltage induced in a coil through which a magnet moves is independent of the rate at which the magnet moves. An emf is induced in a long, but not infinite, solenoid by a bar magnet that moves inside it along the solenoid axis.

Explanation / Answer

True : strength of magnet affects the magnetic flied and thus the magnetic flux linked with coil. since induced emf depends on the change in magnetic flux , hence induced voltage is indirectly affected by the strength of magnet.

False :   Induced current depends on the resistance not the induced emf

True : Since magnetic field due to the current in wire produce zero magnetic flux for the metal ring as the normal to ring makes 90 degree angle with the magnetic field direction produced by the current in wire

False :

False : it depends on rate of movement of magnet

False

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