| ⇦ | 
| ⇨ |
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 soap bubble oscillates with time period T, which in turn depends on the pressure
- The self induced e.m.f. in a 0.1 H coil when the current in it is changing
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- A block of mass m is moving on a wedge with the acceleration aᵒ
- A particle moving along X-axis has acceleration f,at time t given by f=fₒ(1- t/T)
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A soap bubble oscillates with time period T, which in turn depends on the pressure
- The self induced e.m.f. in a 0.1 H coil when the current in it is changing
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- A block of mass m is moving on a wedge with the acceleration aᵒ
- A particle moving along X-axis has acceleration f,at time t given by f=fₒ(1- t/T)
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