About Current Formula
The Ohms law is used to create the current formula. The flow of free electrons in an electric circuit is known as current. Potential differences cause the flow of electrons. The rate at which charge flow is also known as the current. I stand for current, and the SI unit of current is ampere. In the part below, we'll look at using the current formula.
Formula of current
The current is equal to the ratio of the potential difference to the resistance, according to Ohm's law. As a result, the current formula is I = V/R, V is the potential difference in volts, and I is the current in Amperes. R stands for resistance in Ohms.
Some examples of Current Formula
Example 1: In an electric circuit, a resistor of 6Ω is connected to the supply of 60V and respectively. Using the current formula, find the value current flowing in the circuit.
Solution:
To find: Current(I) flowing in the circuit.
Given:
V = 60V, R = 6Ω
Using Current formula
I = V/R
I = 60/6
I = 10
Answer:Current flowing in the circuit is 10 Ampere.
Example 2: A current of 20 ampere flows through the resistor of the wires is 2 Ohm. Using the formula of the current, find the value of the potential difference.
Solution:
To find the potential difference:
Given:
I = 20 A, R = 2Ω
Using Current formula
I = V/R
20 = V/2
V = 20 × 2
V = 40
Answer: Potential difference is 40 V.
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