CUET · PHYSICS · PYQ PAPER 2025
A battery of emf 12 V and internal resistance 3 \( \Omega \) is connected to an external resistor R. If the current in the circuit is 0.6 A, the voltage across the external resistor will be
- A 10.2 V
- B 17.0 V
- C 12.0 V
- D 13.8 V
Answer & Solution
Correct Answer
(A) 10.2 V
Step-by-step Solution
Detailed explanation
\( V_R = E - Ir \) \( V_R = 12\, V - (0.6\, A)(3\, \Omega) \) \( V_R = 10.2\, V \)
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