" A "4Omega" resistance wire is doubled on it.Calculate the new resistance of the wire "

A 4 Omega resistance wire is doubled on it. Calculate the new resistance of the wire.

A 5Omega resistance wire is doubled on it. Calculate the new resistance of the wire.

A 4 Omega wire is doubled on it. Calculate the new resistance of the wire.

A 6Omega resistance wire is doubled up by folding. Calculate the new resistance of the wire.

A 8 ohm resistance wire is stretched to double its length. Calculate the new resistance of the wire.

Two copper wires A and B of equal masses are taken. The length of A is double the length of B. If the resistance of wire A is 160 Omega , then calculate the resistance of the wire B.