Magnetism and Electromagnetism The use of permanent magnets is. not made in Loud speakers Energy meters Transformers None of the listed here Loud speakers Energy meters Transformers None of the listed here 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? 25 AT/m 2500 AT/m 250 AT/m 0.25 AT/m 25 AT/m 2500 AT/m 250 AT/m 0.25 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high specific gravity it corrodes easily it has low permeability it has high permeability it has high specific gravity it corrodes easily it has low permeability it has high permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for reluctance is tesla At/Wb At/m Wb tesla At/Wb At/m Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 Wb/mm² 1 Wb/m² 1 Wb/m 1 mWb/m² 1 Wb/mm² 1 Wb/m² 1 Wb/m 1 mWb/m² 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? 200 At 150 At 300 At 100 At 200 At 150 At 300 At 100 At ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS