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The resistance of the armature of an ele...

The resistance of the armature of an electric motor is 55 ohm. The motor draw a current of 2 A when running at 220 V. What is the back e.m.f ?

Text Solution

Verified by Experts

From `I = (V- E)/(R ) , 2 = (220 - E)/(55)`
`E = 110 V`
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