The opposition that a substance offers due to the flow of electric current is called resistance. Resistivity is the electrical opposition per unit length, area, or volume of an element. Resistance contrasts with conductance, which is a measure of the ease with which electrical current flows through a substance.
The resistance of a substance is precisely proportional to the length of the material. The less conductivity, the higher the resistance there is. When electrons are propelled through a metal that has significant resistance, heat is generated, which is why the burner on your electric stove gets hot. A large amount of electricity is being pushed through a metal that has a high resistance, and it gets hot.
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