The point charges `Q` and `-2Q` are placed at some distance apart. If the electirc field at the location of `Q` is `E`, the electric field at the location of `-2Q` will be

Two point charges Q and -3Q are placed at some distance apart. If the electric field at the location of Q is E then at the locality of -3Q , it is

Two points charges q and -2q are placed some distance d apart. If the electric field at the location of q is E, that at the location of -2q is

Charges Q and -2Q are placed at some distance. The locus of points in the plane of the charges where the potential is zero will be :

Two charges 4q and q are placed 30 cm. apart. At what point the value of electric field will be zero

Two point charges+ q and-q are placed at distanced apart. What are the points at which the resultant field is parallel to the line joining the two charges ?

Three point charges -Q, Q and Q are placed on a straight line with distance d between charges as shown. Find the magnitude of the electric field at the point P in the configuration shown which is at a distance a from middle charge Q in the system provided that a gt gt d . Take 2Qd=p .

Two point charges q and -q are separated by a distance 2a. Evaluate the flux of the electric field strength vector across a circle of radius R.

Charge +2Q and -Q are placed as shown in figure. The point at which electric field intensit is zero will be

Two point charges q and -q are separated by the distance 2l . Find the flux of the electric field strength vector across a circle of radius R .