Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 1,000 V 2,000 V 3,125 V 31.25 V 1,000 V 2,000 V 3,125 V 31.25 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is Hennry/meter Hennry Its dimensionless None of the listed here Hennry/meter Hennry Its dimensionless None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability equal to unity equal to that ferromagnetic mate rials slightly less than unity slightly more than unity equal to unity equal to that ferromagnetic mate rials slightly less than unity slightly more than unity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Permanent magnets Transformers Non-magnetic substances Electromagnets Permanent magnets Transformers Non-magnetic substances Electromagnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Substances which have permeability less than the permeability of free space are known as Bipolar Paramagnetic material Diamagnetic material Ferro magnetic material Bipolar Paramagnetic material Diamagnetic material Ferro magnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is reversed in polarity decreased zero increased reversed in polarity decreased zero increased ANSWER DOWNLOAD EXAMIANS APP