Magnetism and Electromagnetism The unit for reluctance is Wb At/Wb tesla At/m Wb At/Wb tesla At/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for permeability is Wb/At × m At/Wb At/m Wb Wb/At × m At/Wb At/m Wb 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 The induced voltage across a stationary conductor in a stationary magnetic field is reversed in polarity zero increased decreased reversed in polarity zero increased decreased ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have 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 High co-ercivity and low density High permeability and low hysteresis loss High co-ercivity and high retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Temporary magnets are used in Loud speakers All of the listed here Motors Generators Loud speakers All of the listed here Motors Generators ANSWER DOWNLOAD EXAMIANS APP
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