Question

Which do we do to find the equivalent of resistors in parallel?

Answer 1

Answer:

We sum the inverse of each resistance and then invert the sum.

Explanation:

The equivalent resistance in case of parallel combination of resistors is given by the formula as :

$\dfrac{1}{R}=\dfrac{1}{R_1}+\dfrac{1}{R_2}$

Here,

R is the equivalent resistance

$R_1\ and\ R_2$ are individual resistors that are connected in parallel

We can find the value of R as :

• Firstly, we add the inverse of the individual resistances.
• Secondly, we invert the sum that we get in above step.

So, the correct option is (a) "We sum the inverse of each resistance and then invert the sum".