A DC motor of internal resistance 6.0 ? is connected to a 24-V power supply. The operating current is 1.0 A
(a) What is the start-up current? (b) What is the back emf when the motor is running at full speed? (c) What is the back emf when the motor is running at half speed?
(a) 4.0 A
(b) 18 V
(c) 9.0 V
Physics & Space Science
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Physics & Space Science