Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Produce current opposite to the increasing current Tend to decrease the amount of current Aid the increasing current Aid the applied voltage Produce current opposite to the increasing current Tend to decrease the amount of current Aid the increasing current Aid the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Laminated iron core Iron core Powdered iron core Air core Laminated iron core Iron core Powdered iron core Air core 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? 0.5 s 0.2 s 0.1 s None of the listed here 0.5 s 0.2 s 0.1 s None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case of an inductance, current is proportional to Voltage across the inductance Magnetic field None of the listed here Both of the listed here Voltage across the inductance Magnetic field None of the listed here Both of the listed here 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 2 wb 20 wb 0.2 wb 0.02 wb 2 wb 20 wb 0.2 wb 0.02 wb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 100 ohms 500 ohms 1000 ohms 5000 ohms 100 ohms 500 ohms 1000 ohms 5000 ohms ANSWER DOWNLOAD EXAMIANS APP
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