Electromagnetic induction A crack in the magnetic path of an inductor will result in Reduced inductance Increased inductance Zero inductance Unchanged inductance Reduced inductance Increased inductance Zero inductance Unchanged inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be 30 mH 48 mH 36 mH 38 mH 30 mH 48 mH 36 mH 38 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 10 H 5 H 20 H 15 H 10 H 5 H 20 H 15 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? Apparent power is zero Any capacitance even if present in the circuit will not be charged Actual power of the circuit is zero Relative power is zero Apparent power is zero Any capacitance even if present in the circuit will not be charged Actual power of the circuit is zero Relative power is zero 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 None of the listed here Remains same Increases Decreases None of the listed here Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, Lesser its weber-turns Lower the e.m.f. induced Longer the delay in establishing steady current through it Greater the flux produced by it Lesser its weber-turns Lower the e.m.f. induced Longer the delay in establishing steady current through it Greater the flux produced by it ANSWER DOWNLOAD EXAMIANS APP
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