Heating Effect of Electric Current

How does the heat produced in a wire of a conductor depend upon the resistance of the conductor? 

How does the heat produce in a wire of a conductor depend upon the current passing through the conductor? 

Electricity is an important form of energy, and it has an important place in modern society. It is a convenient form of energy for a variety of uses in homes, schools, hospitals, industries and so on. When an electric current is passed through a high resistance wire is becoming very hot due to heat produced by electric current. This is called a heating effect of electric current. The electric laundry iron, electric toaster electric oven and electric heater are some familiar devices based on heating effect. The electric heating is also used to produce light, as in an electric bulb.

As a student what initiative would you take in the common concern of 'Save electric energy'. 

Electricity is an important form of energy, and it has an important place in modern society. It is a convenient form of energy for a variety of uses in homes, schools, hospitals, industries and so on. When an electric current is passed through a high resistance wire is becoming very hot due to heat produced by electric current. This is called a heating effect of electric current. The electric laundry iron, electric toaster electric oven and electric heater are some familiar devices based on heating effect. The electric heating is also used to produce light, as in an electric bulb.

What is the heating effect to electric current? 

What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.