| ⇦ | 
| ⇨ |
Charge passing through a conductor of cross-section area A=0.3 m² is given by q=3t²+5t+2 in coulomb, where t is in second. What is the value of drift velocity at t= 2 s?(Given, n=2×10²⁵/m³)
Options
(a) 0.77×10⁻⁵m/s
(b) 1.77×10⁻⁵m/s
(c) 2.08×10⁵m/s
(d) 0.57×10⁵ m/s
Correct Answer:
1.77×10⁻⁵m/s
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- The order of the electric field near the earth’s surface is
- If h is the height of the capillary rise and r be the radius of capillary tube,
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- The order of the electric field near the earth’s surface is
- If h is the height of the capillary rise and r be the radius of capillary tube,
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
I = dq/dt = 6t+5 = 6×2+5= 17A. Therefore Drift Vel.= I/nAe = 17/2×10^25×0.3×1.6×10^(-19) = 1.77×10^(-5)m/s