Voltage Current Amps

While current in electricity is measured in amps voltage describes potential difference across terminals or bodies.

Voltage current amps. The voltage v in volts v is equal to the power p in watts w divided by the current i in amps a. Current is the effect voltage being the cause. I a s va v v 3 phase kva to amps calculation formula. 1 volt 1 joule coulomb.

So the current is lower in the tank with higher resistance. In short high voltage with a few micro amperes cause nothing to the human body like in high voltage supplying cathode ray tube in traditional tv set or high static voltage in the comb. For example a current of 2a flowing through a bulb with a voltage of 12v across it generates 24w of power. A or amps or amperage.

Because the resistance is greater and the voltage is the same this gives us a current value of 0 5 amps. On the other hand high current with hundredth of ampere with ten twenty or thirty or more make nothing to human bodies like electric welding machine as the amount of voltage is not enough to push that level of. The current i in amps is equal to the apparent power s in volt amps divided by the voltage v in volts. To calculate amps divide the voltage by the resistance in ohms.

The current i in amps is equal to 1000 times the apparent power s in volt amps divided by the square root of 3 times the line to line voltage v l l in volts. The voltage v in volts v is equal to the square root of the power p in watts w times the resistance r in ohms ω. Just like voltage resistance is a quantity relative between two points. Amps vs volts.

Amperes amps and volts are the basic concepts that one learns when studying electricity in physics. The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow. Now we can see that if we know two of the values for ohm s law we can solve for the third. Voltage is the cause and current is its effect.

How to calculate with watts amps volts and ohms if you want to do an electrical calculation involving voltage current resistance or power reference the formulae circle below. For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit. Advertisement a neat analogy to help understand these terms is a system of plumbing pipes. Voltage can exist without current.

V or volts or voltage. Current cannot flow without voltage.