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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
- A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion
- A block of mass m moving at a velocity v collides with another block of mass 2m
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- A and B are two vectors and θ is the angle between them ,if |A x B|=√3(A.B),the value of θ
- A parallel beam of fast moving electrons is incident normally on a narrow slit.
Topics: Current Electricity (136)
Subject: Physics (2479)
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