jee_main_2026_23_january_evening - Electromagnetic Induction Topics

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QUESTION #41 Faraday's Law of Induction
A circular loop of radius 7 cm is placed in uniform magnetic field of 0.2 T directed perpendicular to plane of loop. The loop is converted into a square loop in 0.5 s. The EMF induced in the loop is ____ mV.
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QUESTION #42 Mutual Inductance
Suppose a long solenoid of 100 cm length, radius 2 cm having 500 turns per unit length, carries a current I = 10 sin (omega t) A, where omega = 1000 text rad/s . A circular conducting loop (B) of radius 1 cm coaxially slid through the solenoid at a speed v = 1 text cm/s . The r.m.s. current through the loop when the coil B is inserted 10 cm inside the solenoid is alpha/sqrt2 mutextA . The value of alpha is ____. [Resistance of the loop = 10Omega ]
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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