SOME TERMS OF ELECTRICTY WE HAVE LEARNED

Electrical terms

here are some of the terms we work with through out the course

Volts (V)..the force or pressure required to move electrons in a circuit

Amps (I or A)..unit of current..the more the electrons flowing the larger the current.

Ohms(R)..resistance..the units in the measuring the resistance to the flow of electrons

Ohms laws

if provided 2 of the above values you can calculate the 3^rd using Ohms law.

V= A x R A = V/R R = V/A

Voltage Drop is the amount of voltage that has dropped since leaving the battery.

Power is measured in Watts...

W = V x I V = W/I I = W/V

There are several types of electrical circuits but we are familiar with:

series..created when components of a acircuit are connected one after the other.the current stays the same but the voltage is used up as is flows through the circuit.

Parallel.. each component of this circuit get the same voltage as they are branched off from the source of power.usually of a high current,the amperage is divided by each branch

(http://t3.gstatic.com/images?q=tbn:ANd9GcQ-bQshTCWTN20VqCIZb7p_RJo4536TZVA2NZRmryk66EewMz5qfw&t=1)

Compound...this is part series, part parallel.any calculations for this circuit type requires the parallel part to be measured first.

(http://hop.concord.org/e1/e1ma3.html)