Exploring electricity

When was the last time you spotted lightning? Have you ever felt a jolt while getting out of your car, during winters? How do you think the lights go on immediately after you press the switch?

Note

Take a balloon, fill it up with air, and close the mouth of the balloon tightly. Now rub the balloon against your dry hair; do this for a few seconds, and take the balloon close to the wall. What happens when you do this? Write it down in your observation notebook.

From static electricity to electric current to the lightning in the sky, these are all examples of various effects of electricity.

Electricity is a physical phenomenon that occurs due to the presence and flow of the electric charge (the unit by which charge is measured is coulomb). Electricity causes many effects that we come across everyday.

All electronic devices-be it our phones, headphones, watches and clocks-all operate on the exact same power source, that is movement of electrons. We know now that the movement...