Technology
Examples of Ohm’s Law
The ohm law is one where there is a relationship between electrical conductors and their resistance. Therefore ohmic conductors have a temperature resistance that is constant and does not depend on the different applied potential.
5 Examples of Ohm’s law
- Calculate the resistance at which there is a voltage of 6V and a current of 600 Ma.
R = v / I
R =?
V = 6v
I = 600 Ma = 0.6 A.
R = V / I = 6 / 0.6 = 12
Resistance is 12 W.
- Calculate the voltage of a circuit where there is a current of 3.5 amps and a resistance of 30 W.
V = RI
R = 30w
V =?
I = 3.5A
V = RI = (30) (3.5) = 105
The resistance is 105 W.
- Calculate the current in a circuit in which the voltage of 50V and a resistance of 120W.
I = V / R
R = 12OW
V = 50V
I =?
I = V / R = 50/120
The current is 0.416A or 146Ma
- When the refrigerator is connected, ohm’s law is applied since it applies a voltage internally when it is turned on.
- When starting a car the starter motor has an internal resistance that is connected to the battery.