Electric Current and Electric Potential Energy

• In Fridays class we learned of electric fields and how to calculate the intensity of it using the formula:

E=F/Q; where E=electric field intensity (N/C); F=electrostatic force (N); Q=charge(C)

• To finish off the class we compared electric current to the flow of water through a hose.  The two types of current are:

-Alternating Current (AC) which is current that periodically changes direction

-Direct Current (DC) where all the current is in one direction

 

• In Mondays class we learned the concept of electric potential energy.
• To summarize we can say that opposite charges attract and similar charges repel.

We then moved onto electric potential difference which is more commonly known as voltage.  It is the amount of energy needed to move a charged particle from one point to another.  We can calculate voltage with the formula:

                                                         V=W/Q

Where; V=potential difference (volts)

            W=work(J)

            Q=charge(C)

• To finish off Monday's class we learned of electrical grounding.  The point of a grounding wire is to carry excess charge away from the appliances and people and into the ground which has a charge of zero.

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