Magnetic Circuit The unit of reluctance is Henry/meter Henry Meter/Henry 1/Henry Henry/meter Henry Meter/Henry 1/Henry ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those materials are well suited for making permanent magnets which have ________ retentivity and ________ coercivity. High, low High, high Low, high Low, low High, low High, high Low, high Low, low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because Its mechanical strength is high Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low Its mechanical strength is high Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled ANSWER DOWNLOAD EXAMIANS APP
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 50 500 70 20 50 500 70 20 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The rate of rise of current through an inductive coil is maximum Near the final maximum value of current After one time constant At the start of the current flow At 63.2% of its maximum steady value Near the final maximum value of current After one time constant At the start of the current flow At 63.2% of its maximum steady value ANSWER DOWNLOAD EXAMIANS APP
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