Current electricity

2. • Current Electricity: controlled flow of
electrons through a conductor
• Electric circuit: continuous path in which
electrons can flow
• Charging by Induction
• Methods of Discharging

3. • Electric Cell (source
of electrical
energy): device
that converts
chemical energy
into electrical
energy
• Electrons flow from
negative terminal
to positive terminal

4. • Load: part of circuit that converts electrical
energy into other forms of energy
• Examples: lightbulb, motor, computer

5. • Switch: device in electric circuit that controls
flow of electrons by opening (or closing) circuit

6. • See animation:
• https://tdflashzone2.000webhostapp.com/Electric-circuit/

7. • Circuit diagram: way of drawing an electric
circuit using standard symbols
• Parts of circuit and common symbols:

8. • Motor: load that converts electrical energy
into mechanical energy
• Resistor: device that converts electricity to
heat
• Battery: multiple cells connected in series

10. • Series Circuit: circuit in which loads are
connected end to end so there is only one
path for electrons to flow

11. • Parallel Circuit: circuit in which the loads are
connected by branches so that there are two
or more paths for electrons to flow
• Interruption or break in one part of pathway
does not affect other pathways in circuit

13. • Do you think the
Christmas lights on a
Christmas tree are
connected by a series or
parallel circuit?