Home
Class 12
PHYSICS
A point positive charge is brought near ...

A point positive charge is brought near an isolated conducting sphere as shown in figure the electric field is best given by

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
When a positive point charge is brought near an isolated conducting sphere without touching the sphere, then the free electrons in the sphere are attracted towards the positive charge. This leaves an excess of positive charge on the rear (right) surface of sphere.
Both kind of charges are bound in the metal sphere and cannot escape. They, therefore, reside on the surface.
Thus, the left surface of sphere has an excess of negative charge and the right surface of sphere has an excess of positive charge as given in the figure below

An electric field lines start from positive charge and ends at negative charge (in this case from point positive charge to negative charge created inside the sphere).
Also, electric field line emerges from a positive charge, in case of single charge and ends at infinity.
Here, all these conditions are fulfilled in Fig. (A).
Promotional Banner

Similar Questions

Explore conceptually related problems

A point positve charge is brought near an isolated conducting sphere as shown in figure the electric field is best given by

The net charge given to an isolated conducting solid sphere :

A positive point charge q is brought near a neutral metal sphere.

In going from the surface of a charged conducting sphere towards the centre of the sphere the electric field

A positively charged rod is moved near conducting sphere as shown. What will be the movements of the electrons and protons in the conducting sphere?

Field Of A Charged Conducting Sphere

Consider a metallic hollow sphere with its centre at point O. Point charge +Q is kept in the vicinity of the given sphere as shown in the figure. If the sphere is electrically neutral, then calculate the electric potential at point A due to induced charges on the sphere only.

A positive point charge (+q) is kept in the vicinity of an uncharged conducting plate. Sketch electric field lines originating from the point on to the surface of the plate. Derive the expression for the electric field at the surface of a charged conductor.