Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 24 At 2,400 At 2.4 At 240 At 24 At 2,400 At 2.4 At 240 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. rectangular triangular None of the listed here circular rectangular triangular None of the listed here circular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as susceptance reluctance residual magnetism permeance susceptance reluctance residual magnetism permeance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for reluctance is At/m Wb At/Wb tesla At/m Wb At/Wb tesla ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the direction of the magnetic field reverses magnetic field expands magnetic field collapses direction of the magnetic field remains unchanged direction of the magnetic field reverses magnetic field expands magnetic field collapses direction of the magnetic field remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one Which is a strong magnet Which is a good conductor Through which the magnetic lines of force can pass very easily Which is a bad conductor Which is a strong magnet Which is a good conductor Through which the magnetic lines of force can pass very easily Which is a bad conductor ANSWER DOWNLOAD EXAMIANS APP
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