Question:medium

An electric motor operates on a $50~\mathrm{V}$ supply and a current of $12\mathrm{A}$. If the efficiency of the motor is $30%$, what is the resistance of the winding of the motor?

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Motor efficiency $\eta = \frac{\text{output}}{\text{input}}$, loss = $I^2R$.
Updated On: Apr 8, 2026
  • $6\Omega$
  • $4\Omega$
  • $2.9\Omega$
  • $3.1\Omega$
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The Correct Option is C

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