MarksRiser
MarksRiser
Back to Practice
STANDARDPhysics-Current Electricity

STANDARD Physics Ohm's Law MCQ Question

Type: MCQ-numerical-Easy-Class 12

A battery of emf 15 V and internal resistance of 4 Ω is connected to a resistor. If the current in the circuit is 2 A, the resistance of the resistor is

A

3 Ω

B

4 Ω

C

5 Ω

D

6 Ω

Correct Answer

Option C

Detailed Explanation

Using Ohm's law, V = IR, where V is the emf minus the voltage drop across the internal resistance. Therefore, 15 V = 2 A × (R + 4 Ω). Solving for R gives R = 5 Ω.

Found an issue with this question?

Related Questions

Explore More Questions

All Physics QuestionsCurrent Electricity Questions