CUET · PHYSICS · PYQ PAPER 2023
A battery of emf 20 V and internal resistance \( 2 \, \Omega \) is connected to a resistor, if the current in the circuit is 1 A, find the terminal voltage of the battery.
- A 5 V
- B 10 V
- C 12 V
- D 18 V
Answer & Solution
Correct Answer
(D) 18 V
Step-by-step Solution
Detailed explanation
\( V = E - I r \) \( V = 20 \, V - (1 \, A)(2 \, \Omega) \) \( V = 20 \, V - 2 \, V \) \( V = 18 \, V \)
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