Ohm's law and electrical resistance
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied to the conductor and inversely proportional to the...
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied to the conductor and inversely proportional to the...
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied to the conductor and inversely proportional to the resistance of the conductor. In simpler terms, the current is equal to the voltage divided by the resistance. The constant of proportionality is known as the resistance coefficient and is represented by the letter 'R'.
In this equation,
I is the current in amperes.
V is the voltage in volts.
R is the resistance in ohms.
As you can see from the formula, the current will always be greater than zero, as long as the voltage is non-zero. The resistance is a measure of how much opposition the conductor offers to the flow of current.
A simple example of Ohm's law in action is when you connect a light bulb to a battery. The battery provides the voltage, and the light bulb provides the resistance. The current flowing through the bulb is determined by the voltage and the resistance. If you increase the voltage, the current will also increase. If you increase the resistance, the current will also decrease.
In summary, Ohm's law states that current is directly proportional to voltage and inversely proportional to resistance