If the length of a wire is doubled and cross-sectional area is halved, what happens to the resistance?

The breaking stress for a wire of unit cross - sectional is called its

A wire of given material having length I and area of cross-section A has a resistance of 8Omega . What would be the resistance of another wire of the same material having length l/2 and area of cross-section 4A?

Under a constant pressure head, the rate of flow of orderly volume flow of liquid through a capillary tube is V. if the length of the capillary is doubled and the diameter of the bore is halved, the rate of flow would become

What is the unit for measuring nuclear cross section.

A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5m, then find the length of 1Ω of the resistance wire.

When a force is applied on a wire of uniform cross-sectional area 3×10 −6 m 2 and length 4m, the increase in length is 1 mm. Energy stored in it will be (Y=2×10 11 N/m 2 )