Why do you get an electric shock when touch a car door handle?

The electric shock you feel when touching a car door handle is due to static electricity. When you walk across a carpet or other non-conductive surface, your body picks up an electric charge. This charge can then be transferred to a metal object, such as a car door handle, when you touch it. The sudden discharge of electricity can cause a tingling or even a painful shock.

Here are a few factors that can contribute to static electricity buildup:

- Low humidity: Dry air, such as in the winter or in desert climates, can cause static electricity to build up more easily.

- Synthetic materials: Clothing and carpets made of synthetic materials, such as nylon and polyester, can generate static electricity more easily than natural materials, such as cotton and wool.

- Friction: Rubbing two surfaces together, such as when you walk across a carpet, can create static electricity.

There are a few things you can do to reduce the likelihood of getting an electric shock from a car door handle:

- Use a dryer sheet: Rubbing a dryer sheet over the car door handle can help to dissipate the static electricity.

- Touch a metal object before touching the car door handle: This will help to ground your body and reduce the amount of static electricity that builds up.

- Wear natural fibers: Clothing made of natural fibers, such as cotton and wool, can help to reduce the buildup of static electricity.

- Increase the humidity in your home: Using a humidifier can help to reduce the amount of static electricity in the air.

If you do get an electric shock from a car door handle, don't worry. It is usually harmless and will go away quickly. However, if you experience any pain or discomfort, you should see a doctor.