give an example for positive and negative zero error
Hi! Hiba
Positive zero error:
If the zero marking of the Vernier scale lies on the right hand side of the zero marking of the main scale, then the error is said to be positive zero error. Look at the position of zero of the vernier scale on main scale.
Negative zero error:
If the zero marking of the Vernier scale lies on the left hand side of the zero marking of the main scale, then the error is said to be negative zero error. Look at the position of zero of the vernier scale on main scale
Hope this is clear to you!!
Cheers!!