Magnetism and Electromagnetism A keeper is used to Amplify flux Restore lost flux Provide a closed path for flux Change the direction of magnetic lines Amplify flux Restore lost flux Provide a closed path for flux Change the direction of magnetic lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. None of the listed here Stainless steel Soft iron Hardened steel None of the listed here Stainless steel Soft iron Hardened steel 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 X proportional to 7 inversely proportional to I proportional to distance between the conductors proportional to X proportional to 7 inversely proportional to I proportional to distance between the conductors ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic reluctance of a material Decreases with increasing cross sectional area of material Does not vary with increasing cross-sectional area of material Any of the listed here Increases with increasing cross-sec-tional area of material Decreases with increasing cross sectional area of material Does not vary with increasing cross-sectional area of material Any of the listed here Increases with increasing cross-sec-tional area of material ANSWER DOWNLOAD EXAMIANS APP
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? 0.25 AT/m 2500 AT/m 25 AT/m 250 AT/m 0.25 AT/m 2500 AT/m 25 AT/m 250 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The susceptibility of paramagnetic materials generally lies between 10"2 and KT5 KT3 and 1CT6 KT4 and KT8 1CT3 and 1CT7 10"2 and KT5 KT3 and 1CT6 KT4 and KT8 1CT3 and 1CT7 ANSWER DOWNLOAD EXAMIANS APP
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