You might have observed on a dry day that when you touch the screen of a television or computer monitor (with picture tube), you get a slight shock. Why does it happen?
It happens because:
i. The television screen or computer monitor are fully charged.
ii. The charge gets accumulated (stored) on the screen.
iii. When we touch the screen with our hands which are uncharged, the charges transfer from the screen (discharges) through our hands.
iv. As a result, we get a slight shock.