Electromagnetic Induction

JEE Main Physics · 8 questions

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• A 30 cm long solenoid has 10 turns per cm and area of 5 cm^2. The current through the solenoid coil varies from 2 A to 4 A in…20268 April, Shift 2 · Q40
• A square loop of side 2 cm is placed in a time varying magnetic field with magnitude as B=0.4 sin (300 t) Tesla. The normal to…20266 April, Shift 2 · Q39
• An inductor of inductance 10 mH having resistance of 100 Ω is connected to battery of E.M.F. 1.0 V through a switch as shown in…20266 April, Shift 1 · Q43
• A metal rod of length L rotates about one end at origin with a uniform angular velocity ω. The magnetic field radially falls off…20265 April, Shift 2 · Q36
• A circular loop of radius 20 cm and resistance 2 Ω is placed in a time varying magnetic field B=(2 t^2+2 t+3) T. At t=0, for the…20265 April, Shift 2 · Q50
• In the given circuit below inductance values of L_1, L_2 and L_3 are same. The magnetic energy stored in the entire circuit is…20265 April, Shift 1 · Q50
• A circular current loop of radius R is placed inside square loop of side length L(L ≫ R) such that they are co-planar and their…20262 April, Shift 2 · Q43
• When a coil is placed in a time dependent magnetic field the power dissipated in it is P. The number of turns, area of the coil…20262 April, Shift 1 · Q38