CUET · PHYSICS · PYQ PAPER 2023
A cell of e.m.f 4V and internal resistance \(0.2 \Omega\) is connected to \(1.8 \Omega\) external resistance. The potential difference across the terminal of the cell will be:
- A 4V
- B 2.8V
- C 3.6V
- D 0.4V
Answer & Solution
Correct Answer
(C) 3.6V
Step-by-step Solution
Detailed explanation
\(I = \frac{E}{R+r} = \frac{4}{1.8+0.2} = 2 \, A\) \(V = IR = 2 \times 1.8 = 3.6 \, V\)
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