In the steady state, the rate of flow of heat through any section of a metal bar is ____.

Electric current is the rate of flow of electric charges through a conductor and it is measured in Ampere.

Two rods X and Y are of equal lengths. Each rod has its ends at temperature T_1 and T_2 . What is the condition that will ensure equal rate of flow of heat through the rods X and Y?

State the reason for following : Heating of metal rim to fix on wooden wheel.

What is meant by Joule's heating effect due to flow of current through a conductor?

2 ampere of current is flowing through a wire.What is the amount of charge passing through it in 1 min ?Also find the number of electrons passed through a cross-section of wire in this time.

A geyser heats water flowing at the rate of 3.0 litres per minute from 27 ^@C to 77 ^@C . If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 xx 10^4 J//g ?

Water is flowing at the rate of 3km/h through a circular pipe of 20 cm internal diameter into a circular pipe of into a circular cisten of diameter 10m and depth 2 m. in how much time, will the cistern be filled?