Electric charge is a fundamental property of matter that causes objects to attract or repel each other depending on whether their charges are like or unlike. An electric current is formed when charged objects are provided a conducting path for electrons to flow from higher to lower potential, and it is measured in amperes. Electric circuits allow electrons to flow in a path between terminals of a power source, and can be in either series, where components are connected one after another in a single loop passing the same current through each, or parallel, where multiple pathways split the main current across branches.

1. Presented by,
M.Ramya
1122119BD128
Physical Science

2. Electric Charge
Teacher defines electric charge as electric charge is
the basic property of matter that cause objects to
attract or repel each other.
 Like charge – repel
 Unlike charge – attract
It is measured in coloumb (c)

3. Electric Current
 When the charged object is provided with a conducting path,
electrons start to flow through the path from higher potential
to lower potential.
 That is, an electric current is formed by moving electrons.
 It is measured using device “ Ammeter”.

4. Direction of Current
 The movement of positive charge are called “conventional
current”.
 The flow of electrons is termed as “electron current”.
I = q/t
 SI unit is Ampere ( A )

5. Electric circuit
 The path through which electrons flow from one terminal to
another terminal of source is called electric circuit.
 Types of circuit
* Series circuit
* Parallel circuit

6. Series circuit
 In series, component are connected one after another in a
single loop.
 There is one pathway through which electric current flow.
 The current in each point of the circuit is same.

7. Parallel circuit
 In parallel, the components are connected to the emf source
in two or more loops.
 There is more than one pathway.
 The sum of the individual current in each branches is equal to
main current.

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