This ppt prepared by Student-Teacher from Thiagarajar College of Preceptors-Madurai for Demo Class.

1. TEACHING COMPETENCY
LEVEL - I
Name: B.Nancy Diana
Reg.No:1122119BD094

2. ELECTRICITY
Electric current
• The motion of electric charge through a conductor will constitute an
electric current.
• It is defined as Rate of flow of electric charge in a conductor.

3. ATOM MODEL

4. ATOM
• An atom consist of Proton, Electron and Neutron.
• Proton and Neutron are found inside the Nucleus which is at the
center of an atom.
• Electrons are revolved around the nucleus in a different path which is
called Orbit.
• There is a force of attraction between proton and electron.

5. CHARGE
• It is a basic property of matter that causes an object to attract or repel
each other.
• There are two types of charges
Positive Charge
Negative Charge
• Proton has a positive charge and electron has a negative charge

6. • There is a force of attraction and repulsion between the charges.
I) Like charges are Repel each other.
Example:
Positive (+) and Positive (+) charges
Negative (-) and Negative (-) Charges
II) Unlike charges attract each other.
Example:
Positive (+) and Negative (-)

7. FLOW OF CHARGES
• Electrons flows from lower potential to the higher potential.

8. ELECTRIC CIRCUIT
• An Electric circuit is a closed conducting path which has a network of
electrical components through which electrons are able to flow.

9. TYPES OF CIRCUIT
• Simple circuit
• Series circuit
• Parallel Circuit

10. SERIES CIRCUIT
• A series circuit is the one that has more than one bulb but only one
path through which electrons can travel.
• Current is same but voltage is different .
• Example : Serial lights.

11. PARALLEL CIRCUIT
• In this parallel circuit bulbs are connected in parallel i.e, they are
arranged on many paths.
• Current is different and voltage is same.
• Examples: Home appliances.

12. DIFFERENCE BETWEEN SERIES AND
PARALLEL CIRCUIT
SERIES CIRCUIT PARALLEL CIRCUIT
1. Same amount of current flows through
all the components.
1. Different amount of current flows
through all the components.
2. Voltage is different across each
component.
2. Voltage is same in all the components.
3. Components are arranged in a line. 3. Components are arranged parallel to
each other.
4. If one component breaks down the
whole circuit will burn out.
4. Other components will function even if
one component break down.