Electro Magnetic Induction And Alternating Currents Question 500
Question: The back e.m.f. in a d.c. motor is maximum, when
Options:
A) the motor has picked up max speed
B) the motor has just started moving
C) the speed of motor is still on the increase
D) the motor has just been switched off
Show Answer
Answer:
Correct Answer: A
Solution:
- The back e.m.f. in a motor is induced e.m.f, which is maximum, when speed of rotation of the coil is maximum.
