111. If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be
112. In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralized by all of the following except
113. The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage
114. While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards
115. In a D.C. generator the critical resistance refers to the resistance of
116. As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately
117. An exciter for a turbo generator is a
118. In D.C. generators the polarity of the interpoles
119. Inter-pole flux should be sufficient to
120. The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is
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