A D.C. shunt motoro is a 200 V D.C. supply- Conneded to resistance of 0.2r and at 450 revmin. geduced to 7.5 A at 362 sevlain The motor has an armature doaws an aomature cuosent of 12.5 A the aomature eurent is evaluate the percentage change in magnetic flux. (a) percentage change in tooque.

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A D.C. shunt motoro is
connected to a
200V D.C. supply.
The
motor haS
an armature
resistance of 0i2r
doacws:
aomature cuorent of
12.5°A
at 450 reulmin.
an
If
the
aomature
eusrent is geduced to 7.5A at 362 sevlmin.
evaluate
(a)
the percentagg change in magnetic flux
.
percentage change in toque.
Transcribed Image Text:A D.C. shunt motoro is connected to a 200V D.C. supply. The motor haS an armature resistance of 0i2r doacws: aomature cuorent of 12.5°A at 450 reulmin. an If the aomature eusrent is geduced to 7.5A at 362 sevlmin. evaluate (a) the percentagg change in magnetic flux . percentage change in toque.
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