Eddy currents are induced in the pole shoes of a D.C. machine due to

Related MCQs

• In D.C. generators the pole shoes are fastened to the pole core by
• The function of pole shoes in the case of D.C. machine is
• In case of a 4-pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be
• In a four-pole D.C. machine
• In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilised is called
• The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
• The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is
• Fleming's right-hand rule regarding direction of induced e.m.f., correlates
• While applying Fleming's right-hand rule to And the direction of induced e.m.f., the thumb points towards
• If B is the flux density, I the length of conductor and v the velocity of conductor, then induced e.m.f. is given by