The equations are
What is the formula used to calculate the equation?
To solve the equation using the formula of 
Find the equation by using formula.
On comparing with
We get, 

Hence the equation is 
To learn more about information's, refer:
brainly.com/question/28440534
#SPJ4
Explanation :
An electrical circuit can be either connected in series or parallel.
Series combination: The current flowing in each resistor is the same and the equivalent resistance is given by :

Parallel combination: The voltage for all components in the parallel combination is the same. The equivalent resistance is given by :

So, our of given options the correct one is (b) because the current flowing in both the resistors is the same.