The air gap between stator and armature of an electric motor is kept as small as possible?
a. To get a stronger magnetic field
b. To improve the air circulation
c. To reach the higher speed of rotation
d. To make the rotation easier.
Answers
Answered by
1
Answer:
Correct option is (a) to get a stronger magnetic field.
Answered by
0
Answer:
To get a stronger magnetic field, between the armature and stator the air gap is kept very small. Option a. is correct.
Explanation:
- The field poles create the magnetic field inside an electric motor.
- Between the rotor and the stator, there is a relative motion. This is the purpose of the air gap.
If the air gap is small, the reluctance is low. The lower reluctance gives a higher value of magnetic flux. This allows the electric motor to work very efficiently.
Hence, to get a stronger magnetic field, between the armature and stator of an electric motor the air gap is kept as small as possible.
Option a. is correct.
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