CUET · PHYSICS · PYQ PAPER 2023
If potential difference V applied across a metallic wire is increased by V, how will the drift velocity of the electrons change?
- A becomes half
- B becomes twice
- C becomes four times
- D remains the same
Answer & Solution
Correct Answer
(B) becomes twice
Step-by-step Solution
Detailed explanation
Drift velocity \(\left(v_d\right)\) is directly proportional to the potential difference ( \(V\) ) applied across the wire ( \(v_d \propto V\) ). If the potential difference is increased by \(V\), it effectively doubles ( \(V+V=2 V\) ), causing the drift velocity to double as…
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