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Q. 22

Expert-verified
Found in: Page 791

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

# Two of the three resistors in FIGURE EX28.22 are unknown but equal. The total resistance between points is is . What is the value of ?

The value of is

See the step by step solution

## Step 1: Given Information

We have to find the value of .

## Step 2: Simplify

If two points and there are resistors connected at both ends of the points then it is called the resistors are connected in parallel. This is obvious when the resistors are aligned side by side. The potential difference across the resistors is the same in parallel connection. The equation shows the equivalent resistance for the parallel connection in the form

We have three resistors in parallel where and other two resistors are and . We are given the equivalent circuit by . By equation

Putting the value for into equation to get by