The following table gives the length of three copper wires, their diameters and the applied potential difference across their ends. Arrange the wires in increasing order according to the following

The current density within them.

The following table gives the length of three copper wires, their diameters and the applied potential difference across their ends. Arrange the wires in increasing order according to the following The magnitude of the electric field within them?

The following table gives the length of three copper wires, their diameters and the applied potential difference across their ends. Arrange the wires in increasing order according to the following The drift speed of electrons through them?

If the wire kept in E-W direction be dropped freely, then is there any potential difference induced across it ends?

The potential difference across a given copper wire is increased. What happens to the drift velcoity of the charge carriers?

A wire in N-S direction is dropped freely. Will any potential difference be induced across its ends?

A potentiometer wire carries current. The potential difference across 70 cm of its balances the potential difference across a 2 ohm coil supllied by a cell of e.m.f. 2 volt. When a 1 ohm coil is placed in parallel with the 2 ohm coil, a length equal to 50 cm of the potentiometer wire is required to balance the potential difference across the parallel combination. What is the internal resistance of the 2 V cell?

Two wire A & B are of the same metal and are of same length have area of cross section in the ratio of 2:1 If the same potential difference is applied across each wire. What will be the ratio of the current flowing through the wires A & B ?

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail difference applied across them so that the magnetic field at their centres is the same?

A 2Omega resistor is connected in series with R Omega resistor. This combination is connected across a cell. When the potential difference across 2 Omega resistor is balanced on potentiometer wire, null point is obtained at length of 300cm. When the same procedure is repeated for R Omega resistor, null point is obtained at length 350cm, value of R is

Two wires are made of the same metal .The length of teh first wire is half that of the second wire and its diameter is double that of the second wire.If equal loads are applied on both wires,find the ratio of increase in their lengths.