When a rod is heated, its linear expansions depends on
(a) initial length
(b) area of cross section
(c) mass
(d) temperature rise

When a rod is heated, its linear expansion depends on (a) Initial length (b) area of cross section ( c) Mass (d) temeprature rise

How the resistance of conductor depends on its length and area of cross-section ?

How does the resistance of a conductor depend on: (a) length of the conductor? (b) area of cross-section of the conductor? (c) temperature of the conductor?

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

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

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

The numerical value of coefficient of linear expansion is independent of units of (a) length (b) temperature ( c) area (d) mass

The numerical value of coefficient of linear expansion is independent of units of (a) length (b) temperature (c) area mass

Young's modulus for the material of a rod is Y and its coefficient of linear expansion is alpha . A rod of length l and cross-section A of this material is kept in between two rigid supports and its temperature is increased by t^(@)C . The force developed inside the rod is