Home
Class 12
PHYSICS
A non - conducting disc of radius R is u...

A non - conducting disc of radius R is uniformly charged with surface charge density `sigma`. A disc of radius `(R )/(2)` is cut from the disc, as shown in the figure. The electric potential at centre C of large disc will be

A

`(pi sigmaR)/(2epsilon_(0))`

B

`(sigmaR)/(2piepsilon_(0))`

C

`(sigmaR(pi-1))/(2pi epsilon_(0))`

D

`(sigmaR(pi-1))/(2epsilon_(0))`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A solid of radius 'R' is uniformly charged with charge density rho in its volume. A spherical cavity of radius R/2 is made in the sphere as shown in the figure. Find the electric potential at the centre of the sphere.

An infinite, uniformly charged sheet with surface charge density sigma cuts through a spherical Gaussian surface of radius R at a distance X from its center, as shown in the figure. The electric flux Phi through the Gaussian surface is .

From a uniform disc of radius R, an equilateral triangle of side sqrt(3)R is cut as shown in the figure. The new position of centre of mass is :

A non-conducting thin disc of radius R charged uniformly over one side with surface density s rotates about its axis with an angular velocity omega . Find (a) the magnetic induction at the centre of the disc, (b) the magnetic moment of the disc.

A disc of mass M and radius R moves in the x-y plane as shown in the figure. The angular momentum of the disc at tihe instant shows is

A non-conducting semi circular disc (as shown in figure) has a uniform surface charge density sigma . The ratio of electric field to electric potential at the centre of the disc will be

An annular disc of inner radius a and outer radius '2a' is uniformly charged with uniform surface charge density sigma . Find the potential at a distance 'a' from the centre at a point 'P' lying on the axis.

The distance of center of mass from the center of a uniform disc of radius R. if a circular plate is removed from the disc as shown in figure will be (C is centre of complete disc)

A flat dielectric disc of radius R carries an exces charge on its surface. The surface charge density sigma . The disc rotastes about an axis perpendicular to its lane passing thrugh the centre with angulasr velocity omega . Find the toruque on the disc if it is placed in a uniform magnetic field B directed perpendicular to the rotation axis.

The quarter disc of radius R (see figure) has a uniform surface charge density sigma . (a) Find electric potential at a point (O,O,Z) (b). Find the Z component of electrif field at (O,O,Z)