In D.C. machines the residual magnetism is of the order of

Related MCQs

• Following D.C. generator will be in a position to build up without any residual magnetism in the poles
• Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles ?
• If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speedwill be
• Losses which occur in rotating electric machines and do not occur in transformers are
• In D.C. machines fractional pitch winding is used
• The purpose of retardation test on D.C. shunt machines is to find out
• Hopkinson's test on D.C. machines is conducted at
• Satisfactory commutation of D.C. machines requires
• In case of D.C. machines, mechanical losses are primary function of
• Brushes of D.C. machines are made of