Electromagnetic induction Air-core coils are practically free from Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses 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 The law that the induced e.m.f. and current always oppose the cause producing them is due to Lenz Faraday Coulomb Newton Lenz Faraday Coulomb Newton ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following circuit elements will oppose the change in circuit current? All of the listed here Capacitance Resistance Inductance All of the listed here Capacitance Resistance Inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 300 uH 600 uH 900 uH 1200 uH 300 uH 600 uH 900 uH 1200 uH 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 38 mH 36 mH 30 mH 48 mH 38 mH 36 mH 30 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS