Electromagnetic induction Which of the following inductor will have the least eddy current losses? Powdered iron core Iron core Laminated iron core Air core Powdered iron core Iron core Laminated iron core Air 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 400 N 1000 N 300 N 100 N 400 N 1000 N 300 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Both Hysteresis losses & Eddy current losses Eddy current losses None of the listed here Hysteresis losses Both Hysteresis losses & Eddy current losses Eddy current losses None of the listed here Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Decreases Increases Remains same None of the listed here Decreases Increases Remains same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 1200 uH 300 uH 900 uH 600 uH 1200 uH 300 uH 900 uH 600 uH ANSWER DOWNLOAD EXAMIANS APP
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