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 28 mH 24 mH 12 mH 3 mH 28 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns. No Yes No Yes 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
Electromagnetic induction Which of the following inductor will have the least eddy current losses? Iron core Air core Powdered iron core Laminated iron core Iron core Air core Powdered iron core Laminated iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Mutually inductance between two magnetically coupled coils depends on Permeability of the core The number of their turns All of the listed here Cross-sectional area of their common core Permeability of the core The number of their turns All of the listed here Cross-sectional area of their common 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 90 N 30 N 60 N 120 N 90 N 30 N 60 N ANSWER DOWNLOAD EXAMIANS APP
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