If the length of a wire is doubled by taking more of wire, what happens to its resistance?

Correct option is D

The correct answer is (d) Gets doubled.
· When the length of a wire is doubled, the resistance also gets doubled, assuming the material and cross-sectional area remain constant.
· The resistance of a wire is directly proportional to its length, as described by the formula: R = ρ(L/A), where:
· R is the resistance
· ρ is the resistivity of the material
· L is the length of the wire
· A is the cross-sectional area • Hence, if the length (L) is doubled, the resistance will also double.
Information Booster:
· If the cross-sectional area (A) is doubled while keeping the length constant, the resistance will be halved.
· Resistance depends on factors such as material (resistivity), length, and cross-sectional area.
· Thicker wires (larger cross-sectional area) have lower resistance compared to thinner wires of the same material and length.