Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 10 V 15 V 25 V 12 V 10 V 15 V 25 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The polarity of the induced voltage can be determined by using the left-hand generator rule. Yes No Yes No 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 In case of an inductance, current is proportional to Both of the listed here Voltage across the inductance Magnetic field None of the listed here Both of the listed here Voltage across the inductance Magnetic field None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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 be 24 mH 3 mH 48 mH 12 mH 24 mH 3 mH 48 mH 12 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The inductance of a coil will increase under all the following conditions except When more area for each turn is provided When more length for the same number of turns is provided When the number of turns of the coil increase When permeability of the core increases When more area for each turn is provided When more length for the same number of turns is provided When the number of turns of the coil increase When permeability of the core increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS