Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 2.4 At 2,400 At 24 At 240 At 2.4 At 2,400 At 24 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be M 2M M/2 M/4 M 2M M/2 M/4 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one 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 Which is a bad conductor Through which the magnetic lines of force can pass very easily Which is a strong magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as residual magnetism susceptance reluctance permeance residual magnetism susceptance reluctance permeance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have High susceptibility Both low coercivity and high susceptibility None of the listed here Low coercivity High susceptibility Both low coercivity and high susceptibility None of the listed here Low coercivity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ability of a material to remain magnetized after removal of the magnetizing force is known as retentivity hysteresis permeability reluctance retentivity hysteresis permeability reluctance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS