A $220$ V, $10$ kW, $900$ rpm separately excited $DC$ motor has an armature resistance $R_{a}=0.02 \Omega$. When the motor operates at rated speed and with rated terminal voltage, the electromagnetic torque developed by the motor is $70$Nm. Neglecting the rotational losses of the machine, the current drawn by the motor from the $220$V supply is
- $34.2$ A
- $30$ A
- $22$ A
- $4.84$ A