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Have you ever experienced an electric shock? Probably yes. Have you ever wondered how you get the shock? To understand this, you need to first understand how electricity flows. Electric current needs a path to flow. Not only a path, a complete path. You must have seen a battery. A battery consists of two terminals, a positive and a negative terminal. If you connect one terminal of the battery with a terminal of the bulb and leave another terminal disconnected, will the bulb light up? Yes. you're right, it won't. If you connect both terminals correctly then only the bulb sparks. That means in the first case current can't flow through the circuit because the path was incomplete but in the second case the path was complete and the bulb sparked. You might have a question in your mind. What if we touch the current carrying naked wire? Will we get shocked? Well, it depends on whether you complete the path or not. If you are touching the wire and your body is insulated from the ground you won't get shocked. Here ground means any point which has zero potential. Don't you wonder why didn't you get shocked while you touch the wire and your body is insulated from the ground? When you touch the wire with some potential your body gets charged. Since you didn't provide any path to flow the charge from your body, you didn't get shocked. To get the electric shock charge must flow through our body. Charge only flows if there is a potential difference. When you touch the wire with the insulated body, the wire and your body have the same potential. If you touch any other point with different potential at the same time, you'll get shocked. Remember potential is not the problem but the potential difference is. If you’re touching a wire with 220-volt potential with both hands and any part of your body isn’t touching the ground, you won’t get shocked. Because both the wires are at the same potential. But if any part of your body touches any other point with different potential either higher than 220 volts or less than 220 volts, there created a potential difference and you’ll experience shock. Remember ground is zero potential point. The higher the potential difference, powerful the shock will be. So, we should always follow safety precautions while handling electric circuits. Hope you understand the concept. If you have any doubts do comment below. Before ending the video, I have a question for you. Will the bulb shown in the picture lights up if both terminals of the battery have the same potential of 5 volts? Comment your answer. If you like the video share it with your friends and subscribe to our channel. Don't forget to hit the bell icon so you can get a notification for such informative videos we upload.