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
Magnetic Circuit Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it Leads to their increased weight Produces fringing Lowers their power efficiency Increases their cost of manufacture Leads to their increased weight Produces fringing Lowers their power efficiency Increases their cost of manufacture ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is Less than one More than one More than 100 Ωr 1000 More than 10 Less than one More than one More than 100 Ωr 1000 More than 10 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss. High, low Low, high High, high Low, low High, low Low, high High, high Low, low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to None of the listed here Prevent saturation Increase the flux Increase m.m.f. None of the listed here Prevent saturation Increase the flux Increase m.m.f. ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Ferrites have high hysteresis Ferrites have high resistance Ferrites have high resistance None of the listed here Ferrites have low permeability Ferrites have high resistance Ferrites have high resistance None of the listed here Ferrites have low permeability ANSWER DOWNLOAD EXAMIANS APP
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