Electromagnetic induction The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will 12 mH 3 mH 24 mH 28 mH 12 mH 3 mH 24 mH 28 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following circuit elements will oppose the change in circuit current? Resistance All of the listed here Inductance Capacitance Resistance All of the listed here Inductance Capacitance 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 36 mH 6 mH 18 mH 12 mH 36 mH 6 mH 18 mH 12 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the Amount of flux linkages Rate of change of flux-linkages Flux density of the magnetic field Amount of flux cut Amount of flux linkages Rate of change of flux-linkages Flux density of the magnetic field Amount of flux cut ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Both Hysteresis losses & Eddy current losses Hysteresis losses Eddy current losses None of the listed here Both Hysteresis losses & Eddy current losses Hysteresis losses Eddy current losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS