Magnetism and Electromagnetism Temporary magnets are used in Generators Motors All of the listed here Loud speakers Generators Motors All of the listed here Loud speakers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The use of permanent magnets is. not made in Loud speakers None of the listed here Energy meters Transformers Loud speakers None of the listed here Energy meters Transformers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 2500 AT/m 0.25 AT/m 250 AT/m 25 AT/m 2500 AT/m 0.25 AT/m 250 AT/m 25 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 24 At 240 At 2,400 At 2.4 At 24 At 240 At 2,400 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials having low retentivity are suitable for making None of the listed here Temporary Magnet Permanent magnet Weak magnet None of the listed here Temporary Magnet Permanent magnet Weak magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From north pole to south pole None of the listed here From south pole to north pole From one end of the magnet to another From north pole to south pole None of the listed here From south pole to north pole From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
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