Who discovered that the clouds are electrically charged?
American scientist, Benjamin Franklin discovered that clouds are electrically charged.
Who first proved that clouds possess an electric charge during thunderstorms?
Which of of the given statements are correct regarding clouds during a thunderstorm?
1. Upper parts of the clouds are positively charged.
2. Cloud is electrically neutral (no charge) everywhere.
3. Upper parts of clouds are negatively charged.
4. Lower parts of clouds are negatively charged.