Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density increases doubles decreases remains the same increases doubles decreases remains the same ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Soft iron Stainless steel None of the listed here Hardened steel Soft iron Stainless steel None of the listed here Hardened steel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents current Voltage direction of force on the conductor magnetic field current Voltage direction of force on the conductor magnetic field 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 Remains same Increases First increases and then decreases depending on the depth of iron in¬sertion Decreases Remains same Increases First increases and then decreases depending on the depth of iron in¬sertion ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by All of the listed here By inductive action of another magnet Heating Hammering All of the listed here By inductive action of another magnet Heating Hammering ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has low permeability it has high specific gravity it corrodes easily it has high permeability it has low permeability it has high specific gravity it corrodes easily it has high permeability ANSWER DOWNLOAD EXAMIANS APP
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