Magnetic Circuit The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is ___________Vs 50 70 20 500 50 70 20 500 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because It has good residual magnetism Its mechanical strength is high Its mechanical strength is low Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is high Its mechanical strength is low Its hysteresis loop has large area ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The property of a material which opposes the creation of magnetic flux in it is known as Reluctance Reluctivity Permeance Magneto-motive force Reluctance Reluctivity Permeance Magneto-motive force ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low coercivity Low hysteresis loss Low retentivity High coercivity Low coercivity Low hysteresis loss Low retentivity High coercivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 41.4 44.6 47.5 42.5 41.4 44.6 47.5 42.5 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of reluctance is Meter/Henry 1/Henry Henry Henry/meter Meter/Henry 1/Henry Henry Henry/meter ANSWER DOWNLOAD EXAMIANS APP