Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

A piece of wire is cut into four equal parts and the pieces are bundled together side by side to form a thicker wire. Compared with that of the original wire, the resistance of the bundle is

Options:

Same 

1/4

1/8

1/16

Correct Answer:

1/16

Explanation:

$ \text{Let resistance of original wire is R}$

$ \text{Resistance of one part of the wire is R/4}$

$ \text{When these are connected in parallel then } R'= \frac{R}{16}$