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 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. both of sphere will have same potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Between a hollow and solid metal sphere, charge reside on outer surface in both. None of above. on outer surface in hollow and throughout in solid on outer surface in hollow and throughout in solid. on outer surface in both. None of above. on outer surface in hollow and throughout in solid on outer surface in hollow and throughout in solid. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 6 db 2.15 db 4.15 db 3 db 6 db 2.15 db 4.15 db 3 db ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 145. 150. 250. 225. 145. 150. 250. 225. 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? Charge per unit area becomes very high for lightening to discharge None of these Rain drops may not collect Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge None of these Rain drops may not collect Dust particles may not accumulate ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If an electric current carrying coil is placed in a uniform magnetic field in the direction of magnetic induction, then the net force and torque on the coil are both zero. the net force and torque are both finite. the net force is zero but torque is finite. the net force is finite but torque is zero. the net force and torque on the coil are both zero. the net force and torque are both finite. the net force is zero but torque is finite. the net force is finite but torque is zero. ANSWER DOWNLOAD EXAMIANS APP
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