Magnetism and Electromagnetism The direction of a magnetic field within a magnet is from south to north back to front from north to south front to back from south to north back to front from north to south front to back ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic reluctance of a material Increases with increasing cross-sec-tional area of material Any of the listed here Does not vary with increasing cross-sectional area of material Decreases with increasing cross sectional area of material Increases with increasing cross-sec-tional area of material Any of the listed here Does not vary with increasing cross-sectional area of material Decreases with increasing cross sectional area of material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is 1.7 mA 16 mA 12 mA 120 mA 1.7 mA 16 mA 12 mA 120 mA ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The left hand rule correlates to Magnetic field, electric field and direction of force on a conductor Current, magnetic field and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor Magnetic field, electric field and direction of force on a conductor Current, magnetic field and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability slightly more than unity equal to unity equal to that ferromagnetic mate rials slightly less than unity slightly more than unity equal to unity equal to that ferromagnetic mate rials slightly less than unity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for permeability is Wb At/m At/Wb Wb/At × m Wb At/m At/Wb Wb/At × m ANSWER DOWNLOAD EXAMIANS APP
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