Square Coil, Round Hole Due this Friday, Feb 23 at 11:59 pm (EST) A square, sing

Question

Square Coil, Round Hole Due this Friday, Feb 23 at 11:59 pm (EST) A square, single-turn wire coil L = 1.56 cm on a side is placed inside a solenoid that has a circular cross section of radius r = 2.57 cm, as shown in the figure below The solenoid is 20.0 cm long and wound with 111 turns of wire. If the current in the solenoid is 2.96 A, find the flux through the coil 4.13x104-4 Wb Submit Answer Incorrect. Tries 7/10 Previous Tries If the current in the solenoid is reduced to zero in 2.90 s, calculate the magnitude of the average induced emf in the coil Submit Answer Tries 0/10

Explanation / Answer

Here ,

for the flux through the coil

flux through the coil = magnetic field * area of the coil

flux through the coil = u0 * N * I/L * area of coil

flux through the coil = 4pi *10^-7 * 111 * 2.96/0.20 * 0.0156^2

flux through the coil = 5.02 *10^-7 T.m^2

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average induced emf = change in flux/time

average induced emf = 5.02 * 10^-7/2.90

average induced emf = 1.73 *10^-7 V

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