Correct Answer - Option 1 : 8

__Pole pitch:__

- The pole pitch is defined as the peripheral distance between centers of two adjacent poles in dc machine.
- This distance is measured in term of armature slots or armature conductor come between two adjacent pole centers.
- This is naturally equal to the total number of armature slots divided by the number of poles in the machine.
- A
**pole pitch **in an electrical machine is equal to **180° electrical.**

__Calculation:__

Given that,

Number of coils = 16

As the winding is two-layer winding

⇒ Total number of conductors = 2 × 16 = 32

**Pole pitch = Number of conductors/number of poles = 32/4 = 8**