Factors Affecting Resistance
Resistance to electric current is present in all materials. The amount of resistance depends on certain physical factors. What are they? We will see now. Resistance means the opposition offered…
Ohm’s Law
We know what is current and voltage. Is there any relation between these two? Yes. It is given by a law that is as basic as the alphabet is to…
Basics of Electricity
Electricity is something we all have grown up with. But was it there since the beginning? No. The various devices we use such as bulbs, fans, TVs, radios, mobile phones,…