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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: - In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- Zener diode is used
- If angular momentum of a body is increased by 200% its kinetic energy will increase
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- Zener diode is used
- If angular momentum of a body is increased by 200% its kinetic energy will increase
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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