Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Hardened steel Soft iron None of the listed here Stainless steel Hardened steel Soft iron None of the listed here Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability of materials is not constant. Diamagnetic None of the listed here Ferromagnetic Paramagnetic Diamagnetic None of the listed here Ferromagnetic Paramagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 200 At 150 At 300 At 100 At 200 At 150 At 300 At 100 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Distance between the conductors Current in one conductor Product of current in two conductors Radius of conductor Distance between the conductors Current in one conductor Product of current in two conductors Radius of conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 Wb/m 1 mWb/m² 1 Wb/mm² 1 Wb/m² 1 Wb/m 1 mWb/m² 1 Wb/mm² 1 Wb/m² 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? Remains same Decreases First increases and then decreases depending on the depth of iron in¬sertion Increases Remains same Decreases First increases and then decreases depending on the depth of iron in¬sertion Increases ANSWER DOWNLOAD EXAMIANS APP
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