ohm's law calculator

➤ calculate watts using ohm’s law
➤ calculate amperes using ohm’s law
➤ calculate voltage using ohm’s law
➤ calculate ohms using ohm’s law

calculate watts using ohm's law:

enter any two of the following: e, i, and r

E:
I:
R:

calculation result:

watt:

calculate amperes using ohm's law:

enter any two of the following: e, w, and r

E:
W:
R:
3-Phase:

calculation result:

ampere:

calculate volts using ohm's law:

enter any two of the following: w, i, and r

W:
I:
R:

calculation result:

volt:

calculate ohm using ohm's law:

enter any two of the following: e, i, and w

E:
I:
W:

calculation result:

ohm:
ohm's law ohm's law means that in the same circuit, the current flowing through a conductor is directly proportional to the voltage across the conductor and inversely proportional to the resistance of the conductor. this law was proposed by german physicist georg simon ohm in his paper "determination of the conductivity of metals". published in april 1826. kohlrausch studied ohm's law in 1849 using a dellmann electrometer.
the current is measured by an ammeter and the potential difference is measured by a quadrant potentiometer. according to the measurement results, the current intensity of the conductor is proportional to the potential difference.
with the advancement of circuit research, people gradually realized the importance of ohm's law, and ohm's own reputation also greatly improved. in order to commemorate ohm's contribution to electromagnetism, the physics community named the unit of resistance ohm, represented by the symbol ω.
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