Home
Class 12
PHYSICS
A copper cylindrical tube has inner radi...

A copper cylindrical tube has inner radius a and outer radius b. The resistivity is p. The resistance of . the cylinder between the two ends is

A

`(rhol)/(b^(2)-a^(2))`

B

`(rhol)/(2pi(b-a))`

C

`(rhol)/(pi(b^(2)-a^(2)))`

D

`(pi(b^(2)-a^(2)))/(rhol)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MTG GUIDE|Exercise MCQs AIPMT / NEET|32 Videos

  • CURRENT ELECTRICITY

    MTG GUIDE|Exercise NEET CAFE ( TOPICWISE PRACTICE QUESTIONS )|199 Videos

  • ATOMS AND NUCLEI

    MTG GUIDE|Exercise AIPMT/NEET(MCQs)|40 Videos

  • DUAL NATURE OF MATTER AND RADIATION

    MTG GUIDE|Exercise AIPMT/ NEET MCQs|30 Videos

Similar Questions

Explore conceptually related problems

A cylindrical tube of length l has inner radius a while outer radius b. What is the resistance of the tube between (a) its ends (b) inner and outer surfaces ? (The resistivitiy of its material is p)

Sphere of inner radius a and outer radius b is made of p uniform resistivity find resistance between inner and outer surface

A cylinder of radius R is surrounded by a cylindrical shell of inner radius R and oputer radius 2R. The thermal conductivity of the material of the inner cylinder si k_(1) and that of the outer cylinder is K_(2) ,Assumming no loss of heat , the effective thermal conductivity of the system for heat flowing along the length of the cylionder is :

Inside a cylindrical capacitor of inner radius a and outer radius b, an electron is projected from the surface of inner cylindrical shell perpendicular to it with an initial velocity. In the annular region between the two cylindrical shells a uniform magnetic induction B exist in direction parallel to the axis of capacitor. Find tbe maximum initial velocity with which tbe electron is to be projected so that it will not hit the outer shell.

A current i is uniformly distributed over the cross section of a long hollow cylinderical wire of inner radius R_1 and outer radius R_2 . Magnetic field B varies with distance r form the axis of the cylinder is

A cylindrical conductor of length l and inner radius R_(1) and outer radius R_(2) has specific resistance rho . A cell of emf epsilon is connected across the two lateral faces of the conductor. Find the current drown from the cell.

There are two concentric spheres of radius a and b respectively. If the space between them is filled with medium of resistivity rho , then the resistance of the intergap between the two spheres will be (Assume bgta )