When two clouds having huge amount of positive and negative charges approach each other then?
The initial cause of a lightning strike is a separation of charge within a cloud. Positively charged particles accumulate at the top of the cloud while negatively charged particles concentrate themselves at the bottom of the cloud. Unfortunately, it is currently unknown why this charge separation occurs.
How does lightning occur when two charged clouds come closer?
When oppositely charged clouds comes near to each other,charge gets accumulated in large numbers and air present no longer resists their flow. Negative and positive charges meets producing streaks of bright light called lightning.
Why is a car with closed window a safe place during lightning?
Answer:- A car with closed windows is a safe place as glass is an insulator, so lighting cannot strike it!
What is lightning How does lightning strike class 8?
The bright flash of light which we see in the clouds is called lightning. Lightning is an electric discharge in the atmosphere between oppositely charged clouds (or between charged cloud and the earth). Lightning is produced by the electric charges in the sky.
When can you say that a body is charged?
we can say our body is charged when our body is rubbed by something. u have also seen that during winters when we take off the sweater it produce a crackling sound, it’s because of the the electric discharge. when our body is rubbed it gets charged and produce electric discharge.
How does a body get charged?
When two different materials are rubbed together, there is a transfer of electrons from one material to the other material. This causes one object to become positively charged (the electron loser) and the other object to become negatively charged (the electron gainer).
How will you test the nature of charge present on a body?
Detect charge: Body under test is touched with the metal cap. If the leaves diverge, the body is charged and if there is no effect on leaves, then the body is uncharged. If the leaves diverge further, the body has same charge(positive) and if the leaves come closer to each other, the body has opposite charge(negative).
How an object does acquire positive charge?
During charging by conduction, both objects acquire the same type of charge. If a negative object is used to charge a neutral object, then both objects become charged negatively. In this case, electrons are transferred from the neutral object to the positively charged rod and the sphere becomes charged positively.
How do you find charges?
Electroscope. An electroscope is a device that detects static electricity by using thin metal or plastic leaves, which separate when charged. An object with a suspected static electric charge is brought near the metal plate or ball of the electroscope.