electric charges

electric charges

1. DEFINITION

   • Electricity is the set of physical phenomena related to the presence and flow of electric charges

2. LAW OF CHARGES

   • The law of conservation of energy states that the total amount of energy in any isolated physical system remains unchanged with time,

3. EXAMPLES

   • When taking off a sweater, there is a jump of electrons. Seen in the dark, sparks are detected.
     • When a hand is placed on an electrified metal surface, electrons flow into the skin.
       • A charged balloon sticks to the wall. The electrons jump toward the wall, and the balloon falls off when the exchange ends.