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- 6- The transformer emf can be obtained by (a)By having a time-varying loop area in a static B field (b)By having a stationary loop in a time-varying B field (c) By having a time-varying loop area in a time-varying B field (d)None of the aboveFor 4 pole d.c machine armature winding with a double layer progressive simplex wave winding with 23 number of slots answer the following: a How many coils are present? b What is the coil span in terms of number of slots? c What is commutator pitch in terms of commutator segments? d How many coils are there between two consecutive commutator segments? e How many parallel paths are present?2A. What is another term for "shunt"? a) in series b) in parallel c) compounded d) none of the above 2B. Which of the following is/are a basic type of DC generator connection? a) series b) shunt c) compound d) all of the above
- For dc machines, the series field windings have many turns of fine wire true FalseIf the core of LVDT is at the middle, then the output voltage will be a. maximum b. minimum c. Output voltage is no relation with core position d. 0For a four pole, 16 slot armature with two coil-side/slot having wave connected progressive winding has single turn coils has simplex winding. The number of current paths is?
- - Inter pole winding is connected in O series with armature series with main poles O parallel with armature parallel with main polesIn the field circuit model of a DC machine, a variable _____ is usually inserted in series with the field winding to vary/control the _____ that flows through that circuit. A resistor, voltage B resistor, current C inductor, current D inductor, voltage-4 poles-26 conductors-double layer-simplex wave winding Can you do this in "armature winding"? Thank you.
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