A given wire having resistance R is stretched so as to reduce its diameter to half of its previous value. What will be its new resistance?

A copper wire of resistivity rho is stretched to reduce its diameter to half of its original value. What will be its new resistivity?

Write in the form of a formula a relationship between resistance and resistivity of an ohmic conductor. A wire of length ‘l’ and resistance ‘R’ is stretched so that it’s length is doubled and area of cross section is halved. How will its resistance change?

A wire is of resistance R is stretched, so that its radius decreases b factor n. Calculate its new resistance.

When a piece of aluminium wire of finite length is drawn through a series of dies to reduce it diameter to half tits original value, its resistance will become

Write in the form of a formula a relationship between resistance and resistivity of an ohmic conductor. A wire of length ‘l’ and resistance ‘R’ is stretched so that it’s length is doubled and area of cross section is halved. How will its resistivity change . Justify your answer in each case.

A wire of resistance 1 Omega is stretched to double its length. What is the new resistance?

A wire of resistances 1 Omega is streched to double its length. What is the new resiatnce?

A piece of wire having resistance R is cut into four parts. How does the resistance of each part compare with the original resistance?