Home
Class 10
PHYSICS
A piece of wire of resistance R is cut i...

A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R, then the ratio R/R' is

A

`(1)/(25)`

B

`(1)/(5)`

C

5

D

25

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    NAND LAL PUBLICATION|Exercise ADDITIONAL QUESTIONS |5 Videos
  • ELECTRICITY

    NAND LAL PUBLICATION|Exercise ACTIVITY 12.6|3 Videos
  • LIGHT : REFLECTION AND REFRACTION

    NAND LAL PUBLICATION|Exercise ADDITIONAL QUESTIONS |7 Videos

Similar Questions

Explore conceptually related problems

A piece of wire having resistance R is cut into five equal parts. If the five parts of the wire are placed in parallel,how will the resistance of the combination compare with the resistance of original wire?

A wire having a resistance of 1 ohm is cut into three equal parts. The three qual parts are then joined in parallel. What is the value of the resistance of the combination?

A piece of wire having resistance R is cut into four parts. How does the resistance of each part compare with the original resistance?

A piece of wire having resistance R is cut into five equal parts. How does the resistance of each part of the wire compare with the original resistance?

A wire has a resistance of 90 Omega and it is cut into three pieces having equal lengths. If these are now connected in parallel, find the resistance of the combination so formed.

n cells, each having emf. E and internal resistance r are connected in parallel. What is the net internal resistance of the combination?