Two wires of the same length and material but different radii `r_(1)` and `r_(2)` are suspended from a rigid support both carry the same load at the lower end. The ratio of the stress devedoped in the second wire to that developed in the first wire is

Two wires of same length and material but of different radii are suspended from a rigid support. Both carry the same load. Will the stress, strain and extension in them be same or different ?

Two wires of same material and same length have radii r_1 and r_2 respectively. Compare their resistances.

Two wires A and B of same length and of the same material have the respective radii r_(1) and r_(2) . Their one end is fixed with a rigid support, and at other end equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be

The Young's modulus of steel is twice that of brass. Two wires of the same length and of the same area of cross section, one of steel and another of brass are suspended from the same roof. If we want the lower ends of the wires to be at the same level, then the weight added to the steel and brass wires must be in the ratio of

A metal wire of length L is suspended vertically from a rigid support. When a bob of mass M is attached to the lower end of wire, the elongation of the wire is l:

Two wires of the same length and same material but radii in the ratio of 1:2 are stretched by unequal forces to produce equal elongation. The ratio of the two forces is

An aluminum wire and a steel wire of the same length and cross-section are joined end to end. The compoiste wire is hung from a rigid support and a load is suspended from the free end. If the length of the composite wire is 2.7mm then the increases in the length of wire is (in mm ) (Y_(Al) = 2xx10^(11)Nm^(2), Y_("Steel") = 7xx10^(11) Nm^(-2))

Two wires of the same material have masses in the ratio of their extenisons under the same load if their lenghts are in the ratio 9:10 is

A composite wire of length 2L is made by joining two different wires A and B having the same length, made of the same material but of different radii r and 2r respectively . The composite wire is vibrating at such a frequency, that the junction of the two wires form a node. If the number of antinodes in the wire A is p and that in the wire B is q, then the ratio p : q is

Two wires of the same material but of different diameters carry the same current i . If the ratio of their diameters is 2:1 , then the corresponding ratio of their mean drift velocities will be