Potential at a point A in space is given as `4 xx 10^5V`:- Does the answer depend on the path along which the charge is brought?

Potential at a point A in space is given as 4 xx 10^5V :- Find the work done in bringing a charge of 3muC from infinity to the point A.

What is the gravitational potential due to the Earth at a point which is at a height of 2RE above the surface of the Earth, Mass of the Earth is 6xx10^24 kg, radius of the Earth = 6400 km and G = 6.67xx10^(-11) Nm^2 kg^(-2) .

Derive an expression for the electric intensity due to an electric dipole at a point on the axis of dipole. When a point charge of 5 xx 10^-9 C is taken from point A to point B, the work done is 10^-6 J. Find the potential difference between points A and points B.

An electron is moving with a speed of 3 xx 10^7m//s in a magnetic field of 6 xx 10^-4 T perpendicular to its path. What will be the radius of the path? What will be the frequency and the energy in keV? Given: mass of electron = 9 xx 10^-31 kg , charge e = 1.6 xx 10^-19C , lev = 1.6 xx 10^-19 J .

In a chamber , a uniform magnetic field of 6.5 G (1 G = 10^-4 T) is maintained. An electron is shot into the field with a speed of 4.8 xx 10^6 ms^-1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit, (e=1.6 xx 10^-19 C,m-e=9.1 xx 10^-31 kg)

A potential drop per unit length along a wire is 5 xx 10^-3 V//m . If the emf of a cell balances against length 216 cm of this potentiometer wire, find the emf of the cell.

Two charge 5 mu C and - 4 mu C are kept 5.0 m apart at points A and B respectively. How much work will have to be done to move the charge at A through a distance of 5.0 m further away from point B along the line BA