Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by Rubbing with another magnet The use of permanent magnet Placing it inside a coil carrying current Induction Rubbing with another magnet The use of permanent magnet Placing it inside a coil carrying current Induction ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have High susceptibility None of the listed here Both low coercivity and high susceptibility Low coercivity High susceptibility None of the listed here Both low coercivity and high susceptibility Low coercivity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field first increases and then decreases till it becomes zero increases continuously from initial value to final value decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field first increases and then decreases till it becomes zero increases continuously from initial value to final value ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases remains constant reaches zero increases decreases remains constant reaches zero increases 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 It starts rotating None of the listed here It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux It starts rotating None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the direction of the magnetic field remains unchanged direction of the magnetic field reverses magnetic field collapses magnetic field expands direction of the magnetic field remains unchanged direction of the magnetic field reverses magnetic field collapses magnetic field expands ANSWER DOWNLOAD EXAMIANS APP
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