A magnetic flux of 4 * 10^-3 T m^3 is maintained at a constant value through a c

Question

A magnetic flux of 4 * 10^-3 T m^3 is maintained at a constant value through a coil for of radius 0.3 m for 0.5 s. According to Faraday's law, the emf induced in the coil by this flux is Zero 8 *10^-3 8 * 10^-3 V 2* 10^-3 V Lenz's law states that current induced in a loop of wire when the magnetic fluthrough the loop changes is always clockwise In such a direction as to oppose the change In the original flux In the same direction as that of the current producing the original flux The cross-sectional area of an adjustable single loop is reduced from 1 m^to 0.25 in2 in 0.1s What is the average emf that is induced in this coil if it is in a region where B - 2 T upward, and the coil's plane is perpendicular to B 12 V 15 V 18 V 21 V A rectangular wire loop (area 0.20 mj^2) 0f one turn is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the magnetic field varies according to B = (4 + 2t^2) T, where t is in seconds. What is the magnetic flux cutting the loop when t = 2 sec zero 1.6 T-m^2 2.4 T-m^2 12 T-m^2

Explanation / Answer

11) Faraday's law states that the emf induced is proportional to the rate of change of flux through the area. Since the magnetic flux is maintained at a constant value, the emf induced in the coil should be ZERO.

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