Electromagnetic induction A crack in the magnetic path of an inductor will result in Unchanged inductance Increased inductance Reduced inductance Zero inductance Unchanged inductance Increased inductance Reduced inductance Zero inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage? None of the listed here 0.2 s 0.1 s 0.5 s None of the listed here 0.2 s 0.1 s 0.5 s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 900 uH 1200 uH 300 uH 600 uH 900 uH 1200 uH 300 uH 600 uH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here 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 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