The original area of a metal plate is `100 cm^(2)` at `20^(@)C`. If `beta` for the metal is `0.000032^(@)C^(-1)`, then what is the area of the plate at `200^(@)C`?

The original area of a metal plate is 110 cm^2 at 20 °C. If beta for the metal is 0.000036/ °C, then what is the area of the plate at 200 °C?

Two parallel plates A and B are joined together to form a compound plate . The thicknesses of the plate are 4.0cm and 2.5cm respectively and the area of cross section is 100cm^(2) for each plate. The thermal conductivities are K_(A)=200Wm^(-1) ^(@)C^(-1) for the palte B. The outer surface of the plate A is maintainned at 100^(@)C and the outer surface of the plate A is maintained at 100^(@)C . and the outer surface of the plate B is maintained at 0^(@)C. Find (a) the rate of heat flow through any cross section, (b) the temperature at the interface and (c) the equivalent thermal conductivity of the compound plate.

The coefficient of linear expansion of aluminium is 23xx10^(-6)//""^@C . A circular hole in an aluminium plate 2.725 is cm in diameter at 0^@C .What is the diameter of the hole if the temperature of the plate is raised to 100^@C ?

A thin square metal plate has side of length l_(0) . When the temperature of the plate is raised from 0^(@)C " to " 100^(@)C , its length increased by 1%. What is the percentage increase in area of the plate in this case?

A parallel plate capacitor has capacitance of 1.0 F . If the plates are 1.0 mm apart, what is the area of the plates?

A parallel plate capacitor has capacitance of 1.0 F . If the plates are 1.0 mm apart, what is the area of the plates?

A thin metal square plate has length l. when it is heated from 0^(@)C to 100^(@)C its length increases by 1%. What is the percentage increase in the area of the plate?

Two parallel plates A and B are joined together to form a compound plate . The thicknesses of the plate are 4.0cm and 2.5cm respectively and the area of cross section is 100cm^(2) for each plate. The thermal conductivities are K_(A)=200Wm^(-1) C^(-1) for plate A and K_(B)=400Wm^(-1) C^(-1) for the plate B. The outer surface of the plate A is maintained at 100^(@)C and the outer surface of the plate B is maintained at 0^(@)C . Find (a) the rate of heat flow through any cross section, (b) the temperature at the interface and (c) the equivalent thermal conductivity of the compound plate.