Home
Class 12
PHYSICS
Two positive point charges of unequal ma...

Two positive point charges of unequal magnitude are placed at a certain distance apart. A small positive test charge is placed at null point, then

A

A. The test charge is in unstable equilibrium

B

B. The test charge is in stable equilibrium

C

C. The test charge is in neutral equilibrium

D

D. The test charge is not in equilibrium

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Two point electric charges of unknown magnitudes and signs are placed a certain distance apart. The electric field intensity is zero at a point not between the charges but on the line joining them. Write two essential conditions for this to happen.

Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge -2q is placed at mid-point . The potential energy of the system is (epsi_(0) = permittivity of free space)

Two positive point charges of magnitude Q each are separated by a distance "2a". A test charge 'g_0' is located in a plane which is normal to the line joining these charges and midway between them. The locus of the points in this plane for which the force on the test charge has a maximum value is

two identical rings of radius R have uniformly distributed charge Q(Qgt0) each. Both the rings are fixed and are placed coaxially separated by a distance of R. if a small positive point charge is placed at the mid point and is displaced slightly along the axis then,

Three positive charges of equal magnitude q are placed at the vertics of and equilatral triangle of side l. How can the system of charges be palced in equilibrium?

Two point charges of same magnitude and opposite sign are fixed at point a and B. A third small point charge is to be balanced at point P by the electrostatic force due to these two charges. The point P :

Two point charges +4q and +q are placed at a distance L apart. A third charge Q is so placed that all the three charges are in equilibrium. Then location. And magnitude of the third charge will be

Two point charges +q and -q are placed a distance x apart. A third charge is so placed that at the three charges are in equilibrium. Then

Consider two positive point charges, each of magnitude q, placed on the y-axis at the points (0, a) and (0, -a). A positively charged particle of charge q' and mass m is displaced slightly from the origin in the direction of the positive x-axis. Speed of charge q' at infinity is

Consider two positive point charges, each of magnitude q, placed on the y-axis at the points (0, a) and (0, -a). A positively charged particle of charge q' and mass m is displaced slightly from the origin in the direction of the positive x-axis. At the origin, charge q' will be in