how can i tell how musch volts,amps, and watts are resisted from a resistor by knowing the ohms?

Question

i would be talking about a little math trick so i know how much watts and amps are resisted with the resistor i'm using

Answer 1

The "little math trick" is called Ohm's law and is the most basic equation in electric circuits. As stated above, the formula (as usually expressed) is

E = I*R ; I = E/R; R = E/I

For power (watts)

W = E*I; W =( I^2)*R; W =( E^2)/R

Answer 2

the relationship is V=IR v=volt,i=current(amps), r=resistance(ohms)

if you know any two, you can calculate the third

if you have a 120V circuit, across a 10-ohm resister at equilibrium, you will get 12 amps of current flow

Answer 3

Run to Rona and buy a volt meter.