how are you abel to determine how much energy is subtracted by a resistor by only knowing the ohm value?

Question

you don't have to be a rocket scientist to know what is going on here

Answer 1

The amount of energy (per unit time) used by a resistor depends on the current through it. The ohms value isn't enough; you need to knw either the current through it or the voltage across it. The formulas are

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

where W = joules (energy) per second (watts) if V=volts, R=ohms I=amperes

Answer 2

Energy is Not subtracted. It is converted into Heat by the resistor. The amount of Heat generated is determined by the voltage applied to the resistor and the Ohm value of the resitor. Current is a by product of Voltage and a resitive circuit.