| ⇦ | 
| ⇨ |
An electron revolves in a circle at the rate of 10¹⁹ rounds per second. The equivalent current is (e=1.6×10⁻¹⁹C)
Options
(a) 1.0A
(b) 0.2A
(c) 0.1A
(d) 2.0A
Correct Answer:
0.2A
Explanation:
Current I = qf
Given, q = 16 × 10⁻¹⁹ C and f = 10¹⁹
Therefore, I = 1.6 A
Related Questions: - Suppose for some reasons, radius of earth were to shrink by 1% of present value,
- Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they
- If wavelength of a wave is λ=6000 Å, then wave number will be
- The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV,
- The unit of electric permittivity is
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Suppose for some reasons, radius of earth were to shrink by 1% of present value,
- Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they
- If wavelength of a wave is λ=6000 Å, then wave number will be
- The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV,
- The unit of electric permittivity is
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
Leave a Reply