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
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