Magnetism and Electromagnetism A permeable substance is one Which is a bad conductor Through which the magnetic lines of force can pass very easily Which is a strong magnet Which is a good conductor Which is a bad conductor Through which the magnetic lines of force can pass very easily Which is a strong magnet Which is a good conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density decreases Core length increases Flux density increases Core area increases Flux density decreases Core length increases Flux density increases Core area increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the north poles of two bar magnets are brought close together, there will be a force of attraction no force a force of repulsion a downward force a force of attraction no force a force of repulsion a downward force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it corrodes easily it has low permeability it has high specific gravity it has high permeability it corrodes easily it has low permeability it has high specific gravity it has high permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From north pole to south pole From south pole to north pole From one end of the magnet to another None of the listed here From north pole to south pole From south pole to north pole From one end of the magnet to another None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 90,000 At/Wb 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb 90,000 At/Wb 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb ANSWER DOWNLOAD EXAMIANS APP
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