What is a current voltage and resistance?

Answer 1

Many people find the following analogy useful. Instead of a wire, think of a garden hose. Instead of current, think of water flowing through the hose. Instead of voltage, think of water pressure. And instead of resistance, think of either a crimp in the hose or a narrow section of hose that restricts water flow. After you get your brain around that idea, consider Ohm's Law, which is the most fundamental rule in the study of electricity. Ohm's Law is simply: V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law can be stated in two other ways: I = V/R and R = V/I.

Answer 2

Resistance is ability of substance to oppose the electron flowing through itself. This oppostd energy will be lost in the form of heat. R'l b constant until temp n presr constant. Voltage n currents r parameters of applied input power(el' energy). V*I=P voltage makes this able to draw current as per ohms law. We r al doing this to draw current for diffent applications(load).

Answer 3

A multimeter.