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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Figure shows a coil placed in a decreasing magnetic field applied perpendicular to the plane of the coil. The magnetic field is decreasing at a rate of 10 T/s. Find out current in magnitude and direction of current.

Figure shows a coil placed in a decreasing magnetic field applied perpendicular to the plane of the coil. The magnetic field is decreasing at a rate of 10 T/s. Find out current in magnitude and direction of current.

is so that the magnet gets demagnetized when inside the solenoid The coercitivity of a small magnet where the ferromagnet gets demagnetized is 3× 10^3 A/m. The current required to be passed in a solenoid of length 10cm and number of turns 100 Using Lenz's law