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Free Online Ohm's Law Calculator

Ohm's Law definition

Ohm's Law expresses that the current streaming in a circuit is legitimately corresponding to the applied likely contrast and conversely relative to the opposition in the circuit.

Ohm's Law is one of the most basic and significant laws overseeing electrical and electronic circuits. It relates current, voltage, and obstruction for a straight gadget, with the end goal that if two are known, the third can be determined.

With current, voltage, and obstruction being three of the significant circuit amounts, this implies that Ohm's Law is additionally enormously significant. Ohm's Law is utilized inside all parts of electrical and electronic science. It is utilized for ascertaining the estimation of resistors needed in circuits, and it can likewise be utilized for deciding the flow streaming in a circuit where the voltage can be estimated effectively over a known resistor, yet more than this present, Ohm's Law is utilized in an immense number of counts in all types of electrical and electronic circuit truth be told anyplace that flow streams.

All in all by multiplying the voltage over a circuit the current will likewise twofold. Notwithstanding if the obstruction is multiplied the current will fall considerably.

Ohm's Law formula

The Ohm's Law formula or equation is very straightforward.

Ohm's law can be expressed in a mathematical form:

V=IR

Where:

V = voltage expressed in Volts

I = current expressed in Amps

R = resistance expressed in Ohms

The formula can be manipulated so that if any two quantities are known the third can be calculated.

And we also calculated the ohm law online from


Example:

If a voltage of 14 volts is placed across a 400-ohm resistor determine the amount of current that will flow.

I = V/R

=14/400

=0.035

=35mA

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