Home
Class 12
PHYSICS
In order to increase the resistance of a...

In order to increase the resistance of a given wire of uniform cross section to four times its value, a fraction of its length is stretched uniformly till the full length of the wire becoes `3/2` times the original length. What is the value of this fraction?

A

`(1)/(4)`

B

`(1)/(8)`

C

`(1)/(16)`

D

`(1)/(6)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE - 1 SECTION C,D - Circuit theory, KCL & KVL, Battery , Grouping of cells|15 Videos
  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE - 1 (SECTION E- Electrical Power & Energy)|10 Videos
  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -1 (SECTION -A Definition of Current , Current Density , Drift Velocity )|8 Videos
  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos
  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos

Similar Questions

Explore conceptually related problems

In order to increase the resistance of a given wire of unknown of uniform cross section to four times its value, a fraction of its length is stretched uniformly till the full length of the wire becoes 3/2 times the original length. What is the value of this fraction?

A wire of resistance 12Omega is stretched uniformly till its length becomes three times original length. The change in resistance of wire is

A wire of resistance 5Omega is uniformly stretched until its new length becomes 4 times the original length. Find its new resistance.

A wire of resistance 48 Omega is uniformly stretched until its new length becomes 4 times the original length. Find its new resistance.

If a wire of resistance 25Omega is uniformly stretched until its length becomes three times its original length then its new resistance is

If length of a metallic wire becomes n times, its resistance becomes

A copper wire of resistance R_(0) is strerched till its length is increased to n times of its original length. What will be its new resistance?

The resistance of a wire is r ohm. If it is melted and stretched to n times its original length , its new resistance will be

The resistance of wire of length l and area of cross-section a is x ohm. If the wire is stretched to double its length, its resistance would become: