Magnetism and Electromagnetism Which of the following materials are diamagnetic? Silver Iron Silver and copper Copper Silver Iron Silver and copper Copper 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 Be excessive Increase Remain Constant Decrease Be excessive Increase Remain Constant Decrease ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect None of these both of the listed here reluctance of conductor resistance of conductor None of these both of the listed here reluctance of conductor resistance of conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a good conductor which is a bad conductor which is a strong magnet through which the magnetic lines of force can pass very easily which is a good conductor which is a bad conductor which is a strong magnet through which the magnetic lines of force can pass very easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by The use of permanent magnet Rubbing with another magnet Induction Placing it inside a coil carrying current The use of permanent magnet Rubbing with another magnet Induction Placing it inside a coil carrying current 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? 300 AT 0.3 AT 3 AT 30 AT 300 AT 0.3 AT 3 AT 30 AT ANSWER DOWNLOAD EXAMIANS APP
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