What Ohms Law

If a voltage of 10 volts is placed across a 500 ohm resistor determine the amount of current that will flow.

What ohms law. Thus if the voltage v in units of volts between two ends. In this way the current is found by dividing the voltage by the resistance. Ohm s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. The ohm s law equation is often explored in physics labs using a resistor a battery pack an ammeter and a voltmeter.

Ohm s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance and directly proportional to the resistance of the circuit the formula for ohm s law is v ir this relationship between current voltage and relationship was discovered by german scientist georg simon ohm. Just enter 2 known values and the calculator will solve for the others. Calculate power current voltage or resistance. Ohms law calculation example.

But what is the current. Definition of ohm s law. To students of electronics ohm s law e ir is as fundamentally important as einstein s relativity equation e mc is to physicists. Ohm s law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

The amount of steady current through a large number of materials is directly proportional to the potential difference or voltage across the materials. Ohm s law description of the relationship between current voltage and resistance. A voltmeter is a device equipped with probes that can be touched to two locations on a circuit to determine the electric potential difference across those locations. Ohm s law states that the voltage across a conductor is directly proportional to the current flowing through it provided all physical conditions and temperature remain constant.

The amount of water in the tank is the same as the other tank so using ohm s law our equation for the tank with the narrow hose is. Where i is the current through the conductor in units of amperes v is the voltage measured across the conductor in. Looking at the ohms law triangle the current is the unknown leaving the voltage and resistance as the known values. Ohm s law is the mathematical relationship between electric current resistance and voltage.

Introducing the constant of proportionality the resistance one arrives at the usual mathematical equation that describes this relationship. Because the resistance is greater and the voltage is the same this gives us a current value of 0 5 amps. Simple to use ohm s law calculator.