# Guys! help me please? details

I'm looking for the REAL four factors that affect the flow of current. I got nothing with my Physics book in school T_T I tried to find it in other books in the library but it confuses me. some books say it's voltage and resistance only; some say load and circuit type and the rest say temperature. please help T_T what are the real factors?
18-21, F 12 Answers Jan 8

yeah. I know T_T and it hurts even more because I have to do it -_-

If it is in a physics class, then;<br />
<br />
P=power:watts<br />
E=voltage:volts<br />
I=current:amps<br />
R=resistance:ohms<br />
<br />
Those are the correct factors and relationships for a physics class. Just FYI, I have my doctorate in physics.

thanks! :( yes it's in physics

uhm wait. current affects the flow of the current? O.o

Those are the 4 variables which impact electricity and are used in formulas for various calculations.

Amps/current effects the flow of electricity.

What is the exact question being asked?

I did not think there were 4. Current is the rate of flow at a given point. .

At last, a woman who recognizes the value of us guys! Er...resistance, conductivity, length of the wire and...temperature.

aww. thank you sir :'( I really needed help that bad

You're welcome :)

wait. the other people answered different :( I'm so confused -_-

voltage material that the current is going through leanght of the conductor leanght and thikness of the cabel sorry for bad english <br />
<br />
v voltage high voltage means you can use slimer cabel like high voltage lines if they were useing home voltage of 120v they would have to be so thick there would not be enough metal on earth to power just the usa<br />
<br />
L leangth long cabel is bad kind of hard to exsplain but high voltage lines use up to 400kv so they can transfer lots of power p wich is I * U=P so more U means you need less I so you can use thiner cabels<br />
<br />
meterial i dont know the symbol for it lets say you are useing aluminium its nice it can fatige easaly but its not as good as copper you can have 1/2 slimer copper cabel than aluminium because its a better conductor but it costs more lets not get in to that it has something to do with the electrons on the outermost tier of the atom cant quite remember temperature can also affect this <br />
<br />
p for the surfice area of the face of the cabel like if you were to cut it and look at the face of the cut thicker cabels can transfer more power than thiner cabels made from same stuff at the same voltage<br />
exsample<br />
if you do not have a good enough cabel and low voltage at the source low R at the consumer a light or heater you will have high current wich the cabel can not witstand and it will heat up and melt best way to describe this is take a look at the phone line it has very thin the wiers are like 1mm R of a circle because a phone uses only 50 w and probobly lower than 1amp maybe even less and than take a look at the power supply of your pc it is a lot thiker because it needs to supply 6amp or more and if you wanna see a realy thick cabel take a look at the + lead of a car battery it has to supply over 100 amps at times and thats a lot it is at least 5mm thick wow i wrote a lot im a car electricen so i had to lean all this at school good luck

Voltage, Resistance, Capacitance fequency<br />
E / IxR or, in this case I= E/R<br />
<br />
The "factor" that effect current depends on the RESISTANCE, not the Voltage....in Electronic (CBT)<br />
<br />
However, if we are talking Frequencies, this is another matter and there CURRENT is effected by a number of things....<br />
<br />
Power, and Wavelength....<br />
<br />
In Digital, its effected by Capacitance and Henry's while in Magnetic current its MAXWELLS<br />
<br />
What is the question....Or was that it and is it ba<x>sed with Frequency, CBT or Digital....? <br />
<br />
Are you sure they're not talking TRANSMISSION "Line currents"?