Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density decreases Core length increases Core area increases Flux density increases Flux density decreases Core length increases Core area increases Flux density increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one Which is a bad conductor Which is a good conductor Through which the magnetic lines of force can pass very easily Which is a strong magnet Which is a bad conductor Which is a good conductor Through which the magnetic lines of force can pass very easily Which is a strong magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Removal of magnetic impurities Demagnetising metallic parts Remagnetising metallic parts Removing gases from the materials Removal of magnetic impurities Demagnetising metallic parts Remagnetising metallic parts Removing gases from the materials 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 2,000 V 31.25 V 3,125 V 1,000 V 2,000 V 31.25 V 3,125 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. triangular rectangular None of the listed here circular triangular rectangular None of the listed here circular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)? 180 90 270 360 180 90 270 360 ANSWER DOWNLOAD EXAMIANS APP
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