Magnetism and Electromagnetism Which of the following is the unit of magnetic flux density? Weber Lumens None of the listed here Tesla Weber Lumens None of the listed here Tesla 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)? 360 180 270 90 360 180 270 90 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permanent magnet Attracts all paramagnetic substances and repels others Attracts some substances and repels others Attracts ferromagnetic substances and repels all others Attracts only ferromagnetic substances Attracts all paramagnetic substances and repels others Attracts some substances and repels others Attracts ferromagnetic substances and repels all others Attracts only ferromagnetic substances 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 two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is proportional to 7 proportional to X proportional to distance between the conductors inversely proportional to I proportional to 7 proportional to X proportional to distance between the conductors inversely proportional to I 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 doubles increases remains the same decreases doubles increases remains the same ANSWER DOWNLOAD EXAMIANS APP
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