Magnetic Circuit While comparing magnetic and electric circuits, the flux of magnetic circuit is compared with which parameter of electrical circuit? Conductivity Current E.M.F Current density Conductivity Current E.M.F Current density 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 20 50 70 500 20 50 70 500 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it Increases their cost of manufacture 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 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those materials are well suited for making permanent magnets which have ________ retentivity and ________ coercivity. High, high Low, high High, low Low, low High, high Low, high High, low Low, low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Volume of material Ambient temperature Steinmetz’s coefficient of material Frequency Volume of material Ambient temperature Steinmetz’s coefficient of material ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is Less than one More than 10 More than one More than 100 Ωr 1000 Less than one More than 10 More than one More than 100 Ωr 1000 ANSWER DOWNLOAD EXAMIANS APP
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