Electromagnetic induction A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be 48 mH 12 mH 6 mH 24 mH 48 mH 12 mH 6 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is 0.2 wb 2 wb 20 wb 0.02 wb 0.2 wb 2 wb 20 wb 0.02 wb 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 1000 N 300 N 400 N 100 N 1000 N 300 N 400 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Hysteresis losses None of the listed here Both Hysteresis losses & Eddy current losses Eddy current losses Hysteresis losses None of the listed here Both Hysteresis losses & Eddy current losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The polarity of the induced voltage can be determined by using the left-hand generator rule. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
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
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