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Answer Posted / ustad
for dc average value,rms value and maximum value is same,so
the form factor is unity.
| Is This Answer Correct ? | 7 Yes | 3 No |
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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
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