Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Increase Be excessive Decrease Remain Constant Increase Be excessive Decrease Remain Constant ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Cobalt Nickel Tungsten Chromium Cobalt Nickel Tungsten Chromium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the number of turns All of the listed here Increasing current supply Increasing the cross-sectional area Increasing the number of turns All of the listed here Increasing current supply Increasing the cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux None of the listed here It starts rotating It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux None of the listed here It starts rotating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Increases Decreases Remain same None of the listed here Increases Decreases Remain same None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. None of the listed here Soft iron Stainless steel Hardened steel None of the listed here Soft iron Stainless steel Hardened steel ANSWER DOWNLOAD EXAMIANS APP
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