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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two infinite long straight parallel wires M and N each carry equal currents but in opposite directions are seperated by r0 = 5 m . A square loop L of side a = r0 = 5 m lies in the plane of M and N at a distance of d = r0 = 5 m from the nearest wire. calculate the EMF induced in ther loop L if the currents in M and N are increasing at the rate of 10 ^3 A/s. Also indicate the direction of current in the loop.

Two infinite long straight parallel wires M and N each carry equal currents but in opposite directions are seperated by r0 = 5 m . A square loop L of side a = r0 = 5 m lies in the plane of M and N at a distance of d = r0 = 5 m from the nearest wire. calculate the EMF induced in ther loop L if the currents in M and N are increasing at the rate of 10 ^3 A/s. Also indicate the direction of current in the loop.

A line charge with linear charge density λ is wound around an insulating disc of mass M and radius R A thermocol vessel contains 0.5 kg of distilled water at 30∘ C. A metal coil of area 5×10^−3 m^2 number of turns 100 of radius a pointing up. Now the magnetic field is switched off so that it is free to rotate. In the central region there is a uniform magnetic field B0 which causes the disc to rotate. Find the angular speed with which the disc starts rotating. which is then suspended horizontally as shown in Fig. 3.90