The basic requirement of a d.c. armature winding is that it must be a closed one O a lap winding a wave winding O either lap or wave Lap winding is suitable for current, voltage d.c. generators. high, low O low, high O low, low O high, high

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The basic requirement of a d.c. armature winding is that it must be
a closed one
a lap winding
a wave winding
either lap or wave
Lap winding is suitable for
current,
voltage d.c. generators.
high, low
low, high
low, low
O high, high
Transcribed Image Text:The basic requirement of a d.c. armature winding is that it must be a closed one a lap winding a wave winding either lap or wave Lap winding is suitable for current, voltage d.c. generators. high, low low, high low, low O high, high
If the coil pitch is less than the pole pitch, then the winding is called
O half pitch
partially pitched
fractional pitch
O all of the above
This material is commonly used to insulate the commutator segments from
each other.
mica sheets
silicone
germanium
glass
Transcribed Image Text:If the coil pitch is less than the pole pitch, then the winding is called O half pitch partially pitched fractional pitch O all of the above This material is commonly used to insulate the commutator segments from each other. mica sheets silicone germanium glass
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