Magnetism and Electromagnetism The retentivity of material is useful for the construction of Transformers Electromagnets Permanent magnets Non-magnetic substances Transformers Electromagnets Permanent magnets Non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetomotive force is The flow of an electric current The voltage across the two ends of exciting coil The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The flow of an electric current The voltage across the two ends of exciting coil The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field 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? 9,000 At/Wb 90,000 At/Wb 1,440 At/Wb 14,400 At/Wb 9,000 At/Wb 90,000 At/Wb 1,440 At/Wb 14,400 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The use of permanent magnets is. not made in None of the listed here Energy meters Loud speakers Transformers None of the listed here Energy meters Loud speakers Transformers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Temporary magnets are used in All of the listed here Generators Motors Loud speakers All of the listed here Generators Motors Loud speakers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the flux density in a magnetic field in which the flux in 0.1 m2 is 600 Wb? 600 T 600 T 6 T 6,000 T 600 T 600 T 6 T 6,000 T ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS