A motor with a coil resistance of 10 W is attached to a voltage supply of 90 V.What is the current in the motor when it is running at its maximum speed with a back emf of 60 V?
A)zero
B)3.0 A
C)6.0 A
D)15 A

Question

Quizplus · Accepted Answer

The current can be calculated using Ohm's Law: I = (V - E) / R, where V is the supply voltage, E is the back emf, and R is the resistance. So, I = (90V - 60V) / 10Ω = 3.0 A.

A Motor with a Coil Resistance of 10 W Is