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 6 mH 12 mH 18 mH 36 mH 6 mH 12 mH 18 mH 36 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following inductor will have the least eddy current losses? Iron core Powdered iron core Air core Laminated iron core Iron core Powdered iron core Air core Laminated iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly 120 N 30 N 90 N 60 N 120 N 30 N 90 N 60 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Powdered iron core Iron core Air core Laminated iron core Powdered iron core Iron core Air core Laminated iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Coulomb Newton Faraday Lenz Coulomb Newton Faraday Lenz ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 900 uH 1200 uH 300 uH 600 uH 900 uH 1200 uH 300 uH 600 uH ANSWER DOWNLOAD EXAMIANS APP
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