Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 2,400 At 240 At 24 At 2.4 At 2,400 At 240 At 24 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents Voltage current magnetic field direction of force on the conductor Voltage current magnetic field direction of force on the conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the cross-sectional area 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 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily which is a bad conductor which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily which is a bad conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of spin of electrons orbital motion of electrons either of these spin of nucleus spin of electrons orbital motion of electrons either of these spin of nucleus ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a vector quantity? Magnetic potential Relalative permeability Magnetic field intensity Flux density Magnetic potential Relalative permeability Magnetic field intensity Flux density ANSWER DOWNLOAD EXAMIANS APP
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