Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Copper Aluminium Tungsten Nickel Copper Aluminium Tungsten Nickel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases reaches zero increases remains constant decreases reaches zero increases remains constant ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as reluctance susceptance permeance residual magnetism reluctance susceptance permeance residual magnetism ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 2,400 At 24 At 2.4 At 240 At 2,400 At 24 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be 10 N 0.01 N 0.1 N 100 N 10 N 0.01 N 0.1 N 100 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field expands magnetic field collapses direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field expands magnetic field collapses ANSWER DOWNLOAD EXAMIANS APP
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