Two point charges `+q` and fixed at `(a,0,0)` and `(-a,0,0)`. A third point charge `-q` is at origin. State whether ite equlilbrium is stable, unstable or neutral if it is slightly displaced:
(a) along x-axis. , (b) along y-axis.

Two point charges q each are fixed at (a,0) and (-a,0). A third charge Q is placed at origin. Electrons potential energy of the system will

Two point charges q each are fixed at (a,0) and (-a,0). A third charge Q is placed at origin. Electrons potential energy of the system will

Two point charges +q and -q are held fixed at (-a,0) and (a,0) respectively of a x-y coordinate system then

Two point charges+q nd -q are held fixed at (-a,0) and (a,0) respectively of a x-y coordinate system then

Two point charges (Q each are placed at (0,y) and (0-y) A point charge q of the same polarity can move along the x-axis. Then

Two point charges (Q each are placed at (0,y) and (0-y) A point charge q of the sme polarity can move along the x-axis. Then

Two equal point charges are fixed at x=-a and x=+a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional to

Two equal point charges are fixed at x=-a and x=+a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional to