Current is given the symbol "I" to represent the total amount of charge moving past a point in a conductor divided by the time taken.
I=Q/t
Ampere (A) is equivalent to one charge of coulomb moving through a point in a conductor every second.
Negatively charged electrons will always repel one another which causes it to create a current flow.
http://www.fortunecity.com/greenfield/eagles/180/current.html as shown in the site.
The measurement of current can be done with an ammeter (current-measuring device) by attaching it to the current flow. By doing so you'll be able to measure the DC or direct current which travels in a single direction from the power supply to the conductor.
The electric potential difference is the potential energy for each coulomb of charge in a circuit which can be shown in this simple equation.
V=E/Q
E= the energy required to increase electric potential of a charge
Q= charge
The energy that can be transferred by charge flow would equal this equation.
E=VIt
E=Joules V=Volts I=Amperes t=Time in seconds
A voltmeter can be used to measure between any two points but must be connected to a parallel. Which is a circuit in which loads area connected side by side.
Everything contains some sort of energy which can be exchanged easily from produced forms. Devices are able to harness this energy to form different types of electrical potential energy which may be chemical, mechanical, thermal, or light energy.
Other links for further information
No comments:
Post a Comment