Electromagnetic induction Which of the following inductor will have the least eddy current losses? Air core Laminated iron core Iron core Powdered iron core Air core Laminated iron core Iron core Powdered iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 2.5 1.0 2.0 0.5 2.5 1.0 2.0 0.5 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 None of the listed here Decreases Increases Remains same None of the listed here Decreases Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A moving magnetic field will produce the same effect as a conductor that is moving. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A laminated iron core has reduced eddy-current losses because The laminations are insulated from each other More wire can be used with less D.C. resistance in coil The magnetic flux is concentrated in the air gap of the core The laminations are stacked vertically The laminations are insulated from each other More wire can be used with less D.C. resistance in coil The magnetic flux is concentrated in the air gap of the core The laminations are stacked vertically ANSWER DOWNLOAD EXAMIANS APP
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