Question

If the terminal voltage of 220-V dc generator having armature resistance of 1 ohms. The induced emf produced is 200-V. The armature current for the above machine is?

(a) 20 A

(b) -20 A

(c) -10 A

(d) 10 A

I had been asked this question during an online exam.

Query is from Circuit Model of DC Machines topic in portion DC Machines of Electrical Machines

Answer 1

The correct option is (a) 20 A

To elaborate: I = V-E/r

               = 220-200/1

        = 20 A.