| ⇦ | 
| ⇨ |
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: - The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
- A point source emits sound equally in all directions in a non-absorbing medium.
- A satellite of mass m revolves around the earth of radius R at a height x from
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
- A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
- A point source emits sound equally in all directions in a non-absorbing medium.
- A satellite of mass m revolves around the earth of radius R at a height x from
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
- A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
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