MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Resistivity

The length of...

Question

The length of a conductor is doubled and its radius is halved, its specific resistance is

A

halved

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

doubled

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

quadrupled

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

unchanged

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D unchanged
Specific resistance ( or resistivity ) is an intrinsic property of a material i.e. it depends only on the nature of material but not on the dimensions of the conductor. Thus specific resistance remains the same even if the length of the conductor is doubled and its radius is halved.

Suggest Corrections

thumbs-up

1

Similar questions

Q. If the length of a conductor is doubled and area is halved, then how will the resistance of the conductor changes.

Q. Keeping the length of the conductor constant, if the radius of the conductor is doubled, then its resistance becomes

Q. A closed tube has a frequency

n

. If its length is doubled and radius is halved its frequency will become

Q. Assertion (A) :When the radius of a copper wire is doubled, its specific resistance increases
Reason (R) :Specific resistance is independent of cross-section of material used

Q. Assertion :When the radius of a copper wire is doubled, its specific resistance is increased. Reason: Specific resistance is independent of cross-section of material used.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Resistivity_Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon