Determine the potential at a point 0.50 m (i) from `a+20 muC` potential charge (ii) from `a-20 muC` point charge.

The potential at a point 0.1 m from an isolated point charge is + 100 volt. The nature of the point charge is

Two tiny spheres carrying charges 1.5 muC and 2.5 muC are located 30 cm apart. Find the potential (a) at the mid-point of the line joining the two charges and (b). At a point 10 cm from this mid-point in a plane normal to the line and passing through the mid-point.

Find out electric field intensity at point A (0, 1m, 2m) due to a point charge -20 muC situated at point B (sqrt(2)m, 0, 1m) .

The potential of a point B (-20m, 30m) taking the potential of a point A (30m, -20m) to be zero in an electric field vec E = 10xhati - 20hatj NC^(-1) is

Two charges 10 muC are placed 5.0 mm apart. Determine the electric field at a point P on the axis of the dipole 15 cm away from its centre O on the side of the positive charge, as shown in Fig.

A point charge 20 muC is shifted from infinity to a point P in an electric field with zero acceleration. If the potential of that point is 1000 volt, then (i) Find out work done by electric field ? (iii) If the kinetic energy of charge particle is found to increase by 10 mJ when it is brought from infinity to point P, then what is the total work done by external agent ? (iv) What is the work done by electric field in the part (iii) (v) If a point charge 30 muC is released at rest at point P, then find out its kinetic energy at a large distance ?

Electrostatic force experienced by -3 muC charge placed at point 'P' due to a system 'S' of fixed point charges as shown in figure is vec(F)=(21 hat(i)+9hat(j)) muN . (i) Find out electric field intensity at point P due to S. (ii) If now, 2 muC charge is placed and -3 muC is removed at point P then force experienced by it will be.

Find the work done in taking a charge 100muC from C & D.

The work done in bringing a unit positive charge from infinite distance to a point at distance x from a positive charge Q is W. Then the potential phi at that point is

A uniform electric field of magnitude 250 V// m is directed in the positive x-direction. A+12muC charge moves from the origin to the point (x, y) = (20.0 cm, 5.0 cm). (a) What was the change in the potential energy of this charge? (b) Through what potential difference did the charge move?