The area of cross-section of a copper wire is 4 \times 10^{-7} {\m}^2 and the electrons per cubic metre in copper is 8 \times 10^{28}. If the wire carries a current of 6.4 A , then the drift velocity of the electrons (in 10^{-3} {\m} { s}^{-1} ) is [AP EAPCET 26 May 2025 S1]

AP EAPCET 26 May 2025 Shift 1 Paper

Section: Physics

Question : 108 of 160

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The area of cross-section of a copper wire is 4×10−7m2 and the electrons per cubic metre in copper is 8×1028. If the wire carries a current of 6.4 A , then the drift velocity of the electrons (in 10−3m s−1 ) is

[AP EAPCET 26 May 2025 S1]

0.25
2.5
0.125
1.25

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