Magnetism and Electromagnetism When an iron piece is placed in a magnetic field the magnetic field will not be affected the magnetic lines of force will bend away from their usual paths in order to pass through the piece the iron piece will break the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic field will not be affected the magnetic lines of force will bend away from their usual paths in order to pass through the piece the iron piece will break the magnetic lines of force will bend away from their usual paths in order to go away from the piece ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. None of the listed here Diamagnetic Dielectric Ferromagnetic None of the listed here Diamagnetic Dielectric Ferromagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have Low coercivity High susceptibility Both low coercivity and high susceptibility None of the listed here Low coercivity High susceptibility Both low coercivity and high susceptibility None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Paramagnetic material Non-magnetic materials Ferri-magnetic material Ferro magnetic material Paramagnetic material Non-magnetic materials Ferri-magnetic material Ferro magnetic material 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 First increases and then decreases depending on the depth of iron in¬sertion Decreases Increases Remains same First increases and then decreases depending on the depth of iron in¬sertion Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing current supply Increasing the number of turns All of the listed here Increasing the cross-sectional area Increasing current supply Increasing the number of turns All of the listed here Increasing the cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
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