This presentation provides an overview of electrical circuits, including: - Electrical energy is produced by the flow of electric charges through conductors. A circuit allows charges to flow between two or more points. - A switch is used to open and close a circuit, completing or breaking the flow of current. It is a common and important component. - Circuits can be connected in series or parallel. Components in series share the same current, while those in parallel share the same voltage. - Other concepts covered include electric current, batteries/cells, fuses, and their uses in electrical systems.

1. Presentation
On
Circuits

2. ELECTRICAL ENERGY
•Electrical energy is a form of energy made
available by the flow of the electric charges
through an electrical conductors.
•An electric current is produced when electric
charges or electrons move through an electrical
order.

3. WHAT IS A
CIRCUIT?
A circuit is a path between two or more points along
which an electrical current or charges can
flow can be carried.

4. SWITCH
• A switch is used to close or break the circuit.
• Closing the switch completes the circuit.
• Opening the switch breaks the circuit.
• Switch is the most common and the most important electrical
component.

5. SERIES AND PARALLEL CIRCUITS
• The two simplest of these are called series and parallel and occur
frequently.
• Components connected in series are connected along a single
path, so the same current flows through all of the components.
• Components connected in parallel are connected along multiple
paths, so the same voltage is applied to each component.
• A circuit composed solely of components connected in series is
known as a series circuit
• one connected completely in parallel is known as a parallel

6. • In a series circuit, the current through each of the components is
the same, and the voltage across the circuit is the sum of the
voltages across each component.
• In a parallel circuit, the voltage across each of the components is
the same, and the total current is the sum of the currents through
each component.
• In a series circuit, every device must function for the circuit to be
complete. One bulb burning out in a series circuit breaks the
circuit.
• In parallel circuits, each light bulb has its own circuit, so all but
one light could be burned out, and the last one will still function.

7. SERIES AND PARALLEL CIRCUITS

8. ELECTRIC CURRENT
• Electric current is the measure of the rate of flow of electric
charges through an electrical conductor.
• The SI (System International) unit of electric current is the
Ampere(A).
• Other units are: 1 Ampere = 1000000 Microampere(μA)
(microamps).
1 Ampere = 1000 Milliampere(mA) (milliamps).
• An ammeter is used to measure amperes.

9. BATTERY OR CELL
• An electric battery is a device consisting of one or more
electrochemical cells with external connections provided to
power electrical devices.
• A cell is a battery that is designed to be used once and
discarded, and not recharged with electricity and reused like a
secondary cell (rechargeable).
• In common, cell is referred to single battery, whereas a battery
is referred to many batteries.

10. BATTERY OR CELL???

11. FUSE
• a fuse is an electrical safety device that operates to provide
overcurrent protection of an electrical circuit. Its essential
component is a metal wire or strip that melts when too much
current flows through it, thereby interrupting the current. It is a
sacrificial device; once a fuse has operated it is an open circuit,
and it must be replaced or rewired, depending on type.
• Fuses have been used as essential safety devices from the early
days of electrical engineering.
• It prevents from short circuit in a circuit.
• Now tell me what is more advance component than the fuse?

12. FUSE