Lightning

Lightning is a very bright, brief light phenomenon during a thunderstorm. This is created by brightly shining lines between clouds or clouds and the earth.
Physically, a lightning bolt is a short but very strong electrical current that balances different strong electrical charges between clouds or clouds and the earth. The average current strength is approx. 40,000 A with a lightning bolt diameter of 10 to 20 cm, a length of mostly 2 to 3 km and a duration of less than 1 s. Worldwide, 70 to 100 lightning bolts are registered every second.
A flash is a time short but very strong electrical current that balances the different charges between charged clouds or clouds and the earth.

Electrically charged thunderstorm clouds occur mainly on warm, humid days. Warm but also moist air rises to the top. It cools down in the process. The water vapour in the air turns into water droplets, ice crystals and hailstones. The mechanism of charge separation in the cloud has not yet been clarified in detail. One possible explanation is as follows: Some of the hailstones that have risen fall down again because they are too heavy. The rapid rise of air with water droplets and ice crystals as well as the falling of hailstones cause charge separation due to friction. This creates areas in thunderclouds that are charged differently.

Lightning
Lightning

If the different charges in thunderclouds are large enough, the charge is equalized by lightning. Electrons migrate to the positively charged body.

Lightning strikes especially high, pointed objects, eg high trees, church spires or the tops of roofs.
With the help of a lightning protection system, lightning is caught and safely discharged into the earth. This means that you are relatively safe in buildings. This also applies to cars and other closed vehicles. Do not stand on hills or near trees in open terrain. You are relatively safe when you lie down or squat in a hollow.

Lightning protection system

Lightning is a short but strong electrical current. If thunder strikes a building, the strong electrical currents can cause fires and thus major damage.
In order to protect against such damage caused by thunder strikes, lightning protection systems are installed on buildings in endangered areas. These are constructed in such a way that lightning strikes these systems (lightning rods) and can be discharged safely into the earth. The first lightning rod was built by BENJAMIN FRANKLIN in 1752.
thunder is a short but strong electrical current. If thunder strikes a building, the strong electrical currents can cause fires and thus major damage.
To protect against such damage caused by thunder, are installed in vulnerable areas to buildings Lightning protection systems. These are constructed in such a way that lightning strikes these systems ( lightning rods ) and can be discharged safely into the earth.

The first thunder rod was built by BENJAMIN FRANKLIN.
Electrically charged thunderclouds occur mainly on warm, humid days. If the different charges in thunderclouds are large enough, the charge is equalized by lightning. Electrons migrate to the positively charged body.

Lightning strikes especially high, pointed objects, eg high trees, church spires or the tops of roofs. That is why thunder rods are mainly installed at the highest points in buildings. With the help of a lightning protection system, thunder is caught and safely discharged into the earth.
A lightning protection system has fishing rods and fishing lines that form the highest parts of the house so that lightning strikes there. The electric current of thunder is conducted into the earth via thick iron wires. The grounding is done by plates and copper grids, which are sunk into the groundwater as far as possible.

Thunder

Thunder are very loud sound waves that are generated during a thunderstorm.
During a thunderstorm, the charge is equalized between electrically differently charged clouds or clouds and the earth. Strong electrical currents flow in the process. Due to the hot currents, the air near the lightning bolts expands very quickly for a short time, which leads to a rapid increase in pressure in the air. This increase in pressure spreads as a sound wave and can be heard as thunder.
Thunder are very loud sound waves that are generated during a thunderstorm.
During a thunderstorm, the charge is equalized between electrically differently charged clouds or clouds and the earth. Strong electrical currents flow in the process.
Temperatures are high near the lightning bolts. Since gases expand when the temperature rises, the air near the thunder strikes briefly expands very strongly, which leads to a brief increase in pressure in the air. This rise in pressure is the excitation of a mechanical wave. It spreads as a sound wave and can be heard as thunder.

Since sound and light have different propagation speeds in the air, l and thunder are usually not perceived at the same time. While you can see thunder almost immediately, as light travels at around 300,000 km / s, the sound of thunder takes more time to propagate before it reaches our ears. The speed of propagation of the sound is around 333 m / s. The distance to the thunderstorm can be calculated from the time difference between thunder and thunder. The following rule of thumb applies:

A time difference of 3 seconds between lightning and thunder corresponds to a distance of approx. 1 km.

This rule results from the speed of propagation for sound since the light from the flash can be seen practically immediately due to the high speed of propagation of light.

Leave a Comment

Your email address will not be published.

PLC BOOTCAMP NEW BATCH STARTS FROM 27 JUNE AND ELECTRICAL BOOTCAMP STARTS FROM 22 JUNE.
This is default text for notification bar