Question

A \(12\) V battery is connected to a circuit having \(3\,\Omega\) resistance in it. Find the current flowing in the circuit.

• A. 1 A
• B. 2 A
• C. 3 A
• D. 4 A

Hint:

Ohm's Law: \[ \boxed{V=IR} \] Useful formulas: \[ \boxed{I=\frac{V}{R}},\qquad \boxed{R=\frac{V}{I}} \]

Answer 1

The Correct Option is D

Concept: According to Ohm's Law, \[ \boxed{V=IR} \] where
• \(V\) = Voltage (Volts)
• \(I\) = Current (Amperes)
• \(R\) = Resistance (Ohms)

Step 1: Write the given values.
\[ V=12\text{ V}, \] \[ R=3\,\Omega. \]

Step 2: Calculate the current.
Using Ohm's law, \[ I=\frac{V}{R} =\frac{12}{3} =4\text{ A}. \]

Step 3: Final conclusion.
Hence, the current flowing in the circuit is \[ \boxed{4\text{ A}.} \]