1.

An electric motor operates on a 50 volt supply and a current of 12A. If the efficiency of the motor is 30%, what is the resistance of the winding of the motor     [Kerala PET 2002]

A.   \[6\Omega \]     
B.   \[4\Omega \]
C.   \[2.9\,\Omega \]       
D.   \[3.1\Omega \]
Answer» D.   \[3.1\Omega \]


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