Magnetism and Electromagnetism Magnetic moment is a pole strength universal constant vector quantity scalar quantity pole strength universal constant vector quantity scalar quantity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 24 At 2,400 At 240 At 2.4 At 24 At 2,400 At 240 At ANSWER DOWNLOAD EXAMIANS APP
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 ? 633.8 N/Wb 63.38 N/Wb 63380 N/Wb 6338 N/Wb 633.8 N/Wb 63.38 N/Wb 63380 N/Wb 6338 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m? 8 AT 4 AT 16 AT 10 AT 8 AT 4 AT 16 AT 10 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density decreases remains the same doubles increases decreases remains the same doubles increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 1,000 V 31.25 V 3,125 V 2,000 V 1,000 V 31.25 V 3,125 V 2,000 V ANSWER DOWNLOAD EXAMIANS APP
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