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 Increases Remains same Decreases None of the listed here Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Mutually inductance between two magnetically coupled coils depends on The number of their turns Cross-sectional area of their common core All of the listed here Permeability of the core The number of their turns Cross-sectional area of their common core All of the listed here Permeability of the core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The coefficient of coupling between two air core coils depends on None of the listed here Self-inductance of two coils only Mutual inductance between two coils only Mutual inductance and self inductance of two coils None of the listed here Self-inductance of two coils only Mutual inductance between two coils only Mutual inductance and self inductance of two coils ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, Lower the e.m.f. induced Greater the flux produced by it Longer the delay in establishing steady current through it Lesser its weber-turns Lower the e.m.f. induced Greater the flux produced by it Longer the delay in establishing steady current through it Lesser its weber-turns ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Energy Induced current Induced e.m.f. Charge Energy Induced current Induced e.m.f. Charge ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is 12 mH 36 mH 6 mH 18 mH 12 mH 36 mH 6 mH 18 mH ANSWER DOWNLOAD EXAMIANS APP
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