One telsa is equal to___________?
One telsa is equal to___________?
A. 1 Wb/mm2
B. 1 Wb/m
C. 1 Wb/m2
D. 1 mWb/m2
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The initial permeability of an iron rod is________________?
The initial permeability of an iron rod is________________?A. the highest permeability of the iron rod
B. the lowest permeability of the iron rod
C. the permeability at the end of the iron rod
D. the permeability almost in non-magnetised stateTesla is a unit of_____________?
Tesla is a unit of_____________?A. field strength
B. inductance
C. flux density
D. fluxThe Biot-savart’s law is a general modification of_______________?
The Biot-savart’s law is a general modification of_______________?A. Kirchhoffs law
B. Lenz’s law
C. Ampere’s law
D. Faraday’s lawsThe relative permeability of materials is not constant
The relative permeability of materials is not constantA. diamagnetic
B. paramagnetic
C. ferromagnetic
D. insulatingWhen a magnet is in motion relative to a coil the induced e.m.f. does not depend upon____________?
When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon____________?A. resistance of the coil
B. motion of the magnet
C. number of turns of the coil
D. pole strength of the magnetSusceptibility is positive for______________?
Susceptibility is positive for______________?A. non-magnetic substances
B. diamagnetic substances
C. ferromagnetic substances
D. none of the above