When Length and area of cross- section both are "tripled" for a conductor of a given material, then its resistance

When the length and area of cross-section both are doubled, then its resistance

A cylindrical conductor of length l and uniform area of cross-section A has resistance R . Another conductor of length 2 l and resistance R of the same material has area of cross-section :

If the length and area of cross-section of an inductor remain same but the number of turns is doubled, its self-inductance will become-

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

An object of mass m is suspended at the end of a massless wire of length L and area of cross -section A. Young modulus of the material of the wire is Y. If the mass is pulled down slightly its frequency of oscillation along the vertical direction is :

Following figure shows cross-section through three long conductors of the same length and material, with square cross-section of edge lengths as shown. Conductor B will snugly within conductor B . Relationship between their end to end resistance is

A conductor of length l has a non-uniform cross-section. The radius of cross-section varies linearly from a to b . The resistivity of the material is rho . Find the resistance of the conductc across its ends.

A wire of length l and cross-sectional are A is suspended at one of its ends from a ceiling. What will be its strain energy due to its own weight, if the density and Young's modulus of the material of the wire be d and Y?

Resistance of a conductor of length l and area of cross-section A is R. If its length is doubled and area of cross-section is halved, then find its new resistance.

Resistance of a conductor of length l and area of cross-section A is R. If its length is doubled and area of cross-section is halved, then find its new resistance.