Magnetism and Electromagnetism The unit for reluctance is At/Wb tesla Wb At/m At/Wb tesla Wb At/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are materials. Ferromagnetic Paramagnetic None of the listed here Diamagnetic Ferromagnetic Paramagnetic None of the listed here Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents current magnetic field direction of force on the conductor Voltage current magnetic field direction of force on the conductor Voltage ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil? Decreases Increases First increases and then decreases depending on the depth of iron in¬sertion Remains same Decreases Increases First increases and then decreases depending on the depth of iron in¬sertion Remains same 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 63380 N/Wb 6338 N/Wb 633.8 N/Wb 63.38 N/Wb 63380 N/Wb 6338 N/Wb 633.8 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Tungsten Chromium Cobalt Nickel Tungsten Chromium Cobalt Nickel ANSWER DOWNLOAD EXAMIANS APP
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