Magnetic Circuit The relative permeability of a ferromagnetic material is Less than one More than 100 Ωr 1000 More than one More than 10 Less than one More than 100 Ωr 1000 More than one More than 10 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Conductivity is analogous to Retentivity Resistivity Permeability Inductance Retentivity Resistivity Permeability Inductance ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Final steady current is doubled Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled Final steady current is doubled Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss. Low, high High, high Low, low High, low Low, high High, high Low, low High, low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Steinmetz’s coefficient of material Ambient temperature Volume of material Frequency Steinmetz’s coefficient of material Ambient temperature Volume of material ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
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