DC Generators If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be High Small Zero The same as rated voltage High Small Zero The same as rated voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Wrought iron Silocon steel Cast steel Soft iron Wrought iron Silocon steel Cast steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators Lap winding is composed of Any even number of conductors That even number which is exact multiple of poles Any odd number of conductors That even number which is exact multiple of poles + 2 Any even number of conductors That even number which is exact multiple of poles Any odd number of conductors That even number which is exact multiple of poles + 2 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 flux Direction of motion of conductor, if forefinger points along the lines of flux Direction of induced e.m.f. Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of flux Direction of motion of conductor, if forefinger points along the lines of flux Direction of induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field coil of dc generator are usually made of Carbon Cast iron Copper Mica Carbon Cast iron Copper Mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Type of winding Speed of armature Voltage Amount of current to be collected Type of winding Speed of armature Voltage Amount of current to be collected ANSWER DOWNLOAD EXAMIANS APP