Question

what will happen to the rotation of armature if we increase the number of rectanglur turns and increasing the magnetic pole strenght and decrease tge current through armature coil
​

Answer 1

Explanation:

Magnetic field due to a current carrying coil is given by, B=(μ

0

NIr

2

)/

(z

2

+r

2

)

3

As we can see from the relation magnetic field is directly proportional to the current value ,

so decreasing the current value will decrease the magnetic field also.