Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 2,400 At 240 At 24 At 2.4 At 2,400 At 240 At 24 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 mWb/m² 1 Wb/m 1 Wb/mm² 1 Wb/m² 1 mWb/m² 1 Wb/m 1 Wb/mm² 1 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of spin of nucleus orbital motion of electrons spin of electrons either of these spin of nucleus orbital motion of electrons spin of electrons either of these ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for reluctance is tesla At/Wb At/m Wb tesla At/Wb At/m Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has low permeability it corrodes easily it has high permeability it has high specific gravity it has low permeability it corrodes easily it has high permeability it has high specific gravity ANSWER DOWNLOAD EXAMIANS APP
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