The potential difference between two points in an electric field does not depend on the path connecting them. Explain.

What do mean by the potential difference between two points in an electric field?

Define potential at a point in an electric field.

The potential difference between two ends of an electric bulb is reduced 2%. What should be the change of dissipated power?

Statement I : Kirchhoff's voltage law indicates that electrostatic field is conservative . Statement II : Potential difference between two points in a circuit does not depend on path .

The electric field at a point is

The potential difference between the two ends of a conducting coil is made twice,but it is seen that the current strength is not doubled.Explain the reason.

If a current passes through a metal conducting wire of area of cross section A, the drift velocity of free electrons inside the metal is v_d=1/( n e A) , where the amount of electric charge of an electron =e and the number of free electrons per unit volume of the metal=n. The applied electric field on the wire is E=V/l , where a potential difference V exists between two points, l apart, along the length of the wire. IF R is the resistance of the wire between those two points, then the resistivity of its material is rho=(RA)/l .Besides the mobility (mu) of the free electrons inside a wire is defined as their drift velocity for a unit applied electric field. The radii of two wires of the same metal are in the ratio 1:2 The same potential difference is applied between two points at a distance l on each of the wires.The ratio between the drift velocities of the free electrons in two wires is

If potential difference is applied the value of electric current

What do you mean by neutral point in an electric field? Does any such point exist?

A charge q moving in a straight line is accelerated by a potential difference V. It enters a uniform magnetic field B perpendicular to its path. Deduce in terms of V an expression for the radius of the circular path in which it travels.