Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 250 AT/m 0.25 AT/m 2500 AT/m 25 AT/m 250 AT/m 0.25 AT/m 2500 AT/m 25 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect resistance of conductor both of the listed here None of these reluctance of conductor resistance of conductor both of the listed here None of these reluctance of conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Radius of conductor Distance between the conductors Product of current in two conductors Current in one conductor Radius of conductor Distance between the conductors Product of current in two conductors Current in one conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have Both low coercivity and high susceptibility Low coercivity High susceptibility None of the listed here Both low coercivity and high susceptibility Low coercivity High susceptibility None of the listed here 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 distance between the conductors proportional to 7 inversely proportional to I proportional to X proportional to distance between the conductors proportional to 7 inversely proportional to I proportional to X ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is decreased increased reversed in polarity zero decreased increased reversed in polarity zero ANSWER DOWNLOAD EXAMIANS APP
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