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The drift velocity of the electrons in a copper wire of length 2 m under the application of a potential difference of 200 V is 0.5 ms⁻¹. Their mobility is (in m² V⁻¹ s⁻¹)
Options
(a) 2.5×10⁻³
(b) 2.5×10⁻²
(c) 5×10²
(d) 5×10⁻³
Correct Answer:
5×10⁻³
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
- An alpha nucleus of energy 1/2 mv² bombards a heavy nuclear target of charge Ze
- A boat which has a speed of 5 kmh⁻¹ in still water crosses river of width 1 km long
- Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k
- The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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Good
i want expLanation
d = 2cm
v=200v
vd= 0.5m/s
mobility= vd/E
E=(vd)(d)/V
= 0.5/200(2) = 0.5/100 = (5)(10)-3 m2v-1s-1