Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Rain drops may not collect Dust particles may not accumulate None of these Charge per unit area becomes very high for lightening to discharge Rain drops may not collect Dust particles may not accumulate None of these Charge per unit area becomes very high for lightening to discharge ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is 3.2 H. 3.2 mH. 32 mH. 3.2 µH. 3.2 H. 3.2 mH. 32 mH. 3.2 µH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now both of sphere will have same potential. larger sphere will have smalled potential. larger sphere will have greater potential. smaller sphere will have zero potential. both of sphere will have same potential. larger sphere will have smalled potential. larger sphere will have greater potential. smaller sphere will have zero potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as mutual inductance. self inductance. series aiding inductance. capacitance. mutual inductance. self inductance. series aiding inductance. capacitance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field at any point on the axis of current carrying circular coil will be parallel to axis. perpendicular to axis. at an angle 45o with the axis. zero. parallel to axis. perpendicular to axis. at an angle 45o with the axis. zero. ANSWER DOWNLOAD EXAMIANS APP
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