A cable is replaced by another of the same length and material but of twice diameter.
How many times will be the maximum load supported by the latter as compared to the former?

A cable is replaced by another of the same length and material but of twice diameter. How does this affect elongation under a given load?

A sitar wire is replaced by another wire of same length and material but of three times the earlier radius.If the tension in the wire remains the same,by what factor will the frequency change?

An elastic wire is cut to half its original length. How would it affect the maximum load that the wire can support?

Compare the resistance of two wires of same material. Their lengths are in the ratio 2:3 and their diameters are in the ratio 1:2

A conductor of length L is connected across a dc source of e.m.f E. If the conductor is replaced by another of the same materials and area of cross-section but of length 5 L, by what factor will the drift velocity change?

Two wires of different materials are suspended from a rigid support. They have same length and diameter and carry the sameload at the free ends. Will extension, strain and stress be different?

Two vessels of the same size are at the same temperature. One of them holds on kg of H_2 gas and another 1 kg of N_2 gas. In which vessel is the average molecular speed greater? How many times greater?

A material 'B' has twice the specific resistance of 'A'. A circular wire made of 'B' has twice the diameter of a wire made of 'A'. Then for the two wires to have the same resistance, the ratio l_(B)//l_(A) of their respective lengths must be

A doll manufacturing company manufatures two types of dolls, type A and type B. Each doll of type A takes twice as long as to produce of type B. The company has enough time to manufacture as maximum of 2000 dolls per day if it produces only type B dolls. The supply of plastic is sufficient enough to manufacture a total of 1500 dolls every day. The type A dolls requires fancy dress of which only 550 are available daily. If the company makes a profit of Rs.8 on each type of doll A and Rs.5 on each type of doll B. how many of each type of dolls should the company manufacture everyday so as to get a maximum profit. Also find the maximum profit.