Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Core length increases Core area increases Flux density increases Flux density decreases Core length increases Core area increases Flux density increases Flux density decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a vector quantity? Magnetic potential Magnetic field intensity Flux density Relalative permeability Magnetic potential Magnetic field intensity Flux density Relalative permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents current Voltage magnetic field direction of force on the conductor current Voltage magnetic field direction of force on the conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing current supply All of the listed here Increasing the cross-sectional area Increasing the number of turns Increasing current supply All of the listed here Increasing the cross-sectional area Increasing the number of turns ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following materials are diamagnetic? Iron Silver Copper Silver and copper Iron Silver Copper Silver and copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 24 AT 0.24 AT 240 AT 2.4 AT 24 AT 0.24 AT 240 AT 2.4 AT ANSWER DOWNLOAD EXAMIANS APP
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