Electric Current Formula

The rate of flow of charge through a cross section of some region of a metallic material is called the electric current. It is related to the resistance of the material and the voltage applied to move the charge. It is measured in amperes (A).

Electric current = Voltage / Resistance

The equation is:

I = V/R

Where:

I: Electric Current

V: Voltage

R: Resistance of the material

Electric Current Formula Questions:

1) A wire is connected to a battery with a voltage of 5 V. Its resistance is 2 ohms. What is current flowing?

Answer:

From the electric current formula:

I= V/R = 5 V / 2 ohms = 2.5 A

2) A wire is connected to a battery with a voltage of 5 V. Its resistance is 100 ohms. What is current flowing? Is it less current than the previous question?

Answer:

From the electric current formula:

I= V/R = 5 V / 100 ohms = 0.05 A

Yes, it is less current.