Magnetism and Electromagnetism A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 0.24 N 240 N 2.4 N 24 N 0.24 N 240 N 2.4 N 24 N 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 ? 6338 N/Wb 63380 N/Wb 63.38 N/Wb 633.8 N/Wb 6338 N/Wb 63380 N/Wb 63.38 N/Wb 633.8 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Stainless steel Soft iron None of the listed here Hardened steel Stainless steel Soft iron None of the listed here Hardened steel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle will depend on the amount of e.m.f. applied will be zero will be infinite will depend on the radius of the circle will depend on the amount of e.m.f. applied will be zero will be infinite will depend on the radius of the circle ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Unit for quantity of electricity is Joule Ampere-hour Ampere Coulomb Joule Ampere-hour Ampere Coulomb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Demagnetising metallic parts Remagnetising metallic parts Removal of magnetic impurities Removing gases from the materials Demagnetising metallic parts Remagnetising metallic parts Removal of magnetic impurities Removing gases from the materials ANSWER DOWNLOAD EXAMIANS APP
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