# Electric Current Formula

Electric current is nothing but the rate of change of electric charge through a circuit. This current is related to the voltage and resistance of a circuit. It can be represented by I and the SI unit is Amperes. Electric current relates the electric charge and the time.

According to Ohm’s law, the electric current formula will be,

 $I=\frac{V}{R}$

Where,

• V is the voltage
• R is the resistance
• I is the current

## Electric Current Problems

Let us discuss the problems related to electric current.

Question 1: Calculate the current through the circuit in which the voltage and resistance be 15V and 3Ω respectively?

Solution:The given parameters are,
V = 15V
R = 3Ω
The equation for current using Ohm’s law is,

$I=\frac{V}{R}$

I = $\frac{15}{3}$ = 5A

Question 2: The voltage and resistance of a circuit are given as 10V and 4Ω respectively. Calculate the current through the circuit?

Solution:The given parameters are,
V = 10V
R = 4Ω
The equation for current using Ohm’s law is,

$I=\frac{V}{R}$

I =$\frac{10}{4}$ = 2.5A