Magnetism and Electromagnetism The unit for reluctance is At/m tesla At/Wb Wb At/m tesla At/Wb Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Remain Constant Be excessive Increase Decrease Remain Constant Be excessive Increase Decrease 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 ? 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have High co-ercivity and low density High permeability and low hysteresis loss High co-ercivity and high retentivity Large area of B-H loop High co-ercivity and low density High permeability and low hysteresis loss High co-ercivity and high retentivity Large area of B-H loop ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Air gap has_______eluctance as compared to iron or steel path lower higher little zero lower higher little zero ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is Its dimensionless None of the listed here Hennry/meter Hennry Its dimensionless None of the listed here Hennry/meter Hennry ANSWER DOWNLOAD EXAMIANS APP
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