A copper wire has a resistance of `0.6Omega` Another copper wire of the same mass as the first one is double in length of the first . Find the resistance of the second wire.

Two copper wires A and B have the same mass. The resistance of wire A is 0.5 Omega and the length of wire B is double that of wire A. Find the resistance of wire B.

In fig. battery E is balanced on 55cm length of potentiometer wire but when a resistance of 10Omega is connected in parallel with the battery then it balances on 50cm length of the potentiometer wire then internal resistance r of the battery is:-

For two wires of the same material and having the same length, the resistance of the thicker wire is less than that of the other wire ?

If a uniform wire of resistance R is uniformly strethced to n times the orginal length , then new resistance of the wire becomes

In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52 m of the potentiometer wire. If the cell is shunted by a resistance of 5Omega balance is obtained when the cell connected across 0.4m of the wire. Find the internal resistance of the cell.

Two resistance wires on joining in parallel the resultant resistance is ohms (6)/(5) ohms. One of the wire breaks, the effective resistance is 2 ohms . The resistance of the broken wire is

A wire of resistivity p is pulled to double its length. What will be its new resistivity?

The resistance of the platinum wire of a platinum resistance thermometer at the ice point is 5Omega and at steam point is 5.23 Omega . When it is inserted in a hot bath, the resistance of the wire is 5.795 Omega . Calculate the temperature of the bath.

A wire of length L and radius r is clamped rigidly at one end. When the other end of the wire is pulled by a force f its length increases by l. Another wire of the same material of length 2L and radius 2r is pulled by a force 2f. Then find the increase in length of this wire.

If the length of a given conducting wire is kept constant and its diameter is doubled, what will be the resistance of the new wire?