Define ohms law
And examples
Answers
Answer:
Ohm's law states that the voltage V across a conductor of resistance R is proportional to the current I passing through the resistor (see circuit below). ... I = V / R and R = V / I. The units are in Volts (V) for the voltage V, Amperes (A) for the current I and Ohms (Ω) for the resistance of R.
Explanation:
Ohm's Law
Ohm's law states that the voltage V across a conductor of resistance R is proportional to the current I passing through the resistor (see circuit below). The relationship is written as.
V = R I
example of circuit to explain Ohm's law
Which can also be written as
I = V / R and R = V / I.
The units are in Volts (V) for the voltage V, Amperes (A) for the current I and Ohms (Ω) for the resistance of R.
Use Ohm's Law to Solve Simple Circuits Problems
Example 1
Find the current I through a resistor of resistance R = 2 Ω if the voltage across the resistor is 6 V.
Solution to Example 1
Substitute R by 2 and V by 6 in Ohm's law V = R I.
6 = 2 I
Solve for I
I = 6 / 2 = 3 A