Magnetism and Electromagnetism The retentivity of material is useful for the construction of Non-magnetic substances Transformers Permanent magnets Electromagnets Non-magnetic substances Transformers Permanent magnets Electromagnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2,400 At 240 At 24 At 2.4 At 2,400 At 240 At 24 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density remains the same increases decreases doubles remains the same increases decreases doubles ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is reversed in polarity increased decreased zero reversed in polarity increased decreased zero ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. Diamagnetic Ferromagnetic Dielectric None of the listed here Diamagnetic Ferromagnetic Dielectric None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one Through which the magnetic lines of force can pass very easily Which is a good conductor Which is a strong magnet Which is a bad conductor Through which the magnetic lines of force can pass very easily Which is a good conductor Which is a strong magnet Which is a bad conductor ANSWER DOWNLOAD EXAMIANS APP
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