Question

What is the role of stationary brushes in this device?


(i) To protect it from short circuit.


(ii) To make contact between two split rings and source battery.


(iii) To increase the magnitude of current.


(iv)To produce magnetic fields around split rings.​

Answer 1

Answer:

to protect it from short circuit

Answer 2

Answer:

i) To protect it from short circuit is the correct answer