What causes lightning during a thunder storm?

Answer 1

Lightning storms are created in humid weather conditions because the static electricity cannot dissipate and builds up in the air until it is finally released in the form of lightning.

Lightning is produced in thunderstorms when liquid and ice particles above the freezing level collide, and build up large separated electrical fields in the clouds. Once these electric fields become powerful enough to overcome the resistance of the air, a giant "spark" occurs between them (as with static electricity) reducing the charge separation. The lightning spark, or bolt, can occur between clouds, between a cloud and the air, or (more importantly) between a cloud and the ground.

Answer 2

Lightning and thunderstorms are caused due to difference in charge between (charged) clouds. The clouds get charged by either friction or induction. When two oppositely charged clouds happen to come close enough so that their electric fields interact, they attract each other very strongly. On coming into physical contact, the difference in charge produces a spark which we call a lightning. The spark is so strong that it produces a loud sound called thunder. When the difference in charge is large, a strong spark and loud thunder is experienced. On the other other hand, if the difference in charge is less, it is reverse.

Answer 3

Lightning is caused by the buildup of electric charges in clouds. When the difference in charges between the clouds and the ground becomes strong enough, it results in a sudden discharge of electricity in the form of lightning.

Answer 4

Static electricity - caused by the ground and the cloud developing opposite charges.