Magnetism and Electromagnetism A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ? 6338 N/Wb 63.38 N/Wb 633.8 N/Wb 63380 N/Wb 6338 N/Wb 63.38 N/Wb 633.8 N/Wb 63380 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage reverses polarity remains unchanged increases decreases reverses polarity remains unchanged increases decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Tesla is a unit of Flux density Inductance Flux Field strength Flux density Inductance Flux Field strength ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Transformers Electromagnets Non-magnetic substances Permanent magnets Transformers Electromagnets Non-magnetic substances Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The left hand rule correlates to Magnetic field, electric field and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Current, magnetic field and direction of force on a conductor Magnetic field, electric field and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Current, magnetic field and direction of force on a conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From north pole to south pole None of the listed here From one end of the magnet to another From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another From south pole to north pole ANSWER DOWNLOAD EXAMIANS APP
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