Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is 36 mH 12 mH 6 mH 18 mH 36 mH 12 mH 6 mH 18 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Lenz Coulomb Faraday Newton Lenz Coulomb Faraday Newton ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Air core Iron core Powdered iron core Laminated iron core Air core Iron core Powdered iron core Laminated iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Find the force acting on a conductor 3m long carrying a current of 50 amperes at right angles to a magnetic field having a flux density of 0.67 tesla 300 N 400 N 1000 N 100 N 300 N 400 N 1000 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS