Correct option is C
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Question
The speed of a DC motor is directly proportional to-
Similar Questions
- 1)
The back EMF in a DC motor opposes the supply voltage. This is explained by _____________.
- 2)
Which of the following statements related to the speed control of DC shunt and series motors is correct?
- 3)
In a brake test, the DC motor took 20 A from a 200 V supply mains. The brake pulley of radius 10 cm had an effective load of 20 kg and the speed was 10 rps. The value of BHP (in metric) is _________.
- 4)A 3-point starter is used to start __________motors.
- 5)________ motor has the poorest speed regulation.
- 6)In electric breaking, the braking energy is converted into ________energy.
- 7)The speed of a DC machine is measured by using a/an-
- 8)In which of the following applications is a DC series motor essential?
- 9)How can the direction of rotation of a DC shunt motor be reversed?
- 10)It is advisable to start a DC series motor with some load to:
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