DC Generators In D.C. generators on no-load, the air gap flux distribution in space is Triangular Pulsating Sinusoidal Flat topped Triangular Pulsating Sinusoidal Flat topped ANSWER DOWNLOAD EXAMIANS APP
DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of induced e.m.f. Direction of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of induced e.m.f. Direction of flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main drawback of a dc shunt generator is that Generated voltage is small Shunt field circuit has high resistance Terminal voltage drops considerably It is expensive Generated voltage is small Shunt field circuit has high resistance Terminal voltage drops considerably It is expensive ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Amount of current to be collected Voltage Speed of armature Type of winding Amount of current to be collected Voltage Speed of armature Type of winding ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Stray loss Iron loss Mechanical loss Constant loss Stray loss Iron loss Mechanical loss Constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ High resistance winding material Magnetic material of high permeability Lap winding Iron commutator High resistance winding material Magnetic material of high permeability Lap winding Iron commutator ANSWER DOWNLOAD EXAMIANS APP
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