Calculations of Current Voltage and Resistance

 Before going to learn the calculation of voltage, resistor and current. We should discuss little about what the Current Voltage and Resistance are? Let me define these things clearly and separately below.

Current is known as the flow of electrons in a circuit.

Voltage is the power/pressure, which force electrons to flow.

Resistor is, the opposition of current flow in an electrical circuit.

Now, let's discuss the calculation of voltage, current and resistor in an electrical circuit. We will take the example of ohm's law to learn the calculation of voltage, current and resistors. So, in this stage, a question is, what is ohm's law?

OHM's law is a relationship of voltage, current, resistance, and power. Which we can find these formulas known as Ohm’s Law:

V  = I x R — “V” is “I” multiplied by “R”.

I  = V / R — “I” is “V” divided by “R”.

R  = V / I — “R” is “V” divided by “I”.

P  = V x I — “P” is “V” multiplied by “I”.

How many currents the does lamp use?

P = V x I

So: I = P / V ; P = 10W , V = 12V.

I = 10W / 12V

= 0.83A

If you want to use it for 2 hours. You need to use a 12V battery that can power more than 2Ah up. This is the very basic calculation and concept of voltage, resistance and current. We also have discussed about the power. I hope this helped you to learn basic concept. We will discuss deeply about ohm's law in another article.