Electromagnetic induction The inductance of a coil will increase under all the following conditions except When more length for the same number of turns is provided When the number of turns of the coil increase When permeability of the core increases When more area for each turn is provided When more length for the same number of turns is provided When the number of turns of the coil increase When permeability of the core increases When more area for each turn is provided 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 0.02 wb 20 wb 0.2 wb 2 wb 0.02 wb 20 wb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 1200 uH 900 uH 600 uH 300 uH 1200 uH 900 uH 600 uH 300 uH 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 None of the listed here 0.1 s 0.5 s 0.2 s None of the listed here 0.1 s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Aid the applied voltage Tend to decrease the amount of current Produce current opposite to the increasing current Aid the increasing current Aid the applied voltage Tend to decrease the amount of current Produce current opposite to the increasing current Aid the increasing current ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it Lies in a magnetic field Moves parallel to the direction of the magnetic field Lies perpendicular to the magnetic flux Cuts magnetic flux Lies in a magnetic field Moves parallel to the direction of the magnetic field Lies perpendicular to the magnetic flux Cuts magnetic flux ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS