Question

the voltage in a circuit is 12 and the resistance is 4ohm what is the current in the circuit.​

Answer 1

as per ohm's law

V= IR

V= 12v

resistance(R)= 4ohm

I = 12/4= 3 A

Answer 2

Concept:-

• Ohm's law

Given:

• Potential difference, V=12volt

• Resistance, R=4$\Omega$

To find:

• Current flowing through the circuit

Solution:-

According to ohm's Law:

The potential difference across two terminals of a conductor is Directly proportional to the current flowing through the conductor.

So:-

$\longmapsto\bf V\propto I$

By removing sign of proportionality we get:

$\longmapsto\large\boxed{\bf V=IR}\star$

Now substituting given values in this formula:

⇒ V=IR

⇒ 12v=I(4$\Omega$)

⇒ 12/4=I

⇒ 3 Ampere=I

So the current flowing through the conductor is 3 Ampere.