Question

heya what is combination resistance​

Answer 1

Explanation:

different resistances are joined with each other such that there is only one path for the flow of electric current then the combination of such resistance is called 'Series combination'

Answer 2

Two or more resistors are said to be in connected in series combination, if same current passes through each of them, when some potential difference is applied across the combination. The equivalent resistance of the combination is the algebraic sum of all the resistances in that series combination.

I hope you understand.