BLOG 1 - ELECTRIC CIRCUITS 1

What are electrical circuits?

Electrical circuits are an electrical network that has a closed loop giving a return path for the current. 

TOPIC

CHARGE q(t) - is the quantity in a electric circuits.
                          - defined as an electrical property materials.
                          - measured in coulomb (c).
                          - Formula of charge  q=ʃidt.

CURRENT i(t) - defined as the charge flow rate.
                           - measured in ampere (A).
                           - Formula of current  i=dq/dt.  

VOLTAGE v(t) - defined to be the charge rate of doing work.
                           - measured in volt (V).
                           - Formula of voltage V=I/P.
POWER - defined to be the time rate of doing work.
                - can absorb or supplied by circuits elements.
               * Positive - element absorb power.
               * Negative- element supplies power.

ENERGY - defined as the capacity to do work.
                  - measured in joules (j).

THREE BASIC CIRCUIT ELEMENTS 

• POWER SOURCE - defined to be the charge rate of doing work.

• LOAD - the circuit connected to the terminal and a power consumed by a circuit.

• CONDUCTOR - is an object or a type of material that permits the flow of electrical current in one or more directions.

TYPE OF ELEMENT

• ACTIVE ELEMENT - capable of generating energy.

• PASSIVE ELEMENT - absorbs energy.

• VOLTAGE AND CURRENT SOURCE - the most important active element.

MY LEARNING

The things i learned from the previous discussion was that electric circuit is a path in which electrons from voltage or current source from flow Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the "source" of electrons. As result we are now enjoying as well as make use in our daily lives that make our works easier and become more convenient. It is important to know the current in order to make use the right voltage in our appliances because if we don’t know the right current on a certain voltage it may cause damages to the appliances.