Electromagnetic induction A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly 30 N 60 N 120 N 90 N 30 N 60 N 120 N 90 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 100 ohms 1000 ohms 5000 ohms 500 ohms 100 ohms 1000 ohms 5000 ohms 500 ohms ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following is unit of inductance? Ohm Weber/metre Ampere turns Hennry Ohm Weber/metre Ampere turns Hennry 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 400 N 300 N 100 N 1000 N 400 N 300 N 100 N 1000 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be Halved Unaffected Doubled Quadrupled Halved Unaffected Doubled Quadrupled ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A laminated iron core has reduced eddy-current losses because The magnetic flux is concentrated in the air gap of the core More wire can be used with less D.C. resistance in coil The laminations are stacked vertically The laminations are insulated from each other The magnetic flux is concentrated in the air gap of the core More wire can be used with less D.C. resistance in coil The laminations are stacked vertically The laminations are insulated from each other ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS