When a current I is set up in a wire of radius r, the drift velocity is `v_(d)`. If the same current is set up through a wire of radius 2r, the drift speed will be

When current I is made to flow in a wire of radius r, the drift velocity is v_d . If the same current is passed through a wire of radius 2r, then drift velocity will be:

If l be the safe current for the fuse wire of radius r , then :

When current is 4 A in a conductor the drift velocity is v_(d) . When the current is 3 A the drift velocity will be

When current is 4 A in a conductor the drift velocity is v_(d) When the current is 3 A the drift velocity will be

Current I is flowing through a copper wire of radius r with drift velocity of electorns v_(d) . If this current is passed through another copper wire of same length and double the raduis, what will be the drift velocity of free electrons in it?

Statement I: The drift velocity of free electrons is v_d when a current l passes through a copper wire. The drift velocity is halved when the same current passes through another copper wire of double the diameter. Statement II: For the same current, the drift velocity of free electrons in a metal wire is inversely proportional to the area of cross section of the wire.

When a current "i" flows through a wire,the drift velocity of electrons is "v_(d)" .When current "2" i flow through the another wire of same material having double length and same area of cross section and temperature,the drift velocity of the elections will be

A current I flows through a uniform wire of diameter d when the mean electron drift velocity is v . The same current will flow though a wire of diameter d//2 made of the same material if the mean drift velocity of the electron is