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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
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two coils have the mutual inductance of 0.05 H.
- In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
- The ratio of minimum wavelengths of Lyman and Balmer series will be
- A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle
- Two identical capacitors each of capacitance 5 mF are charged potentials 2 kV and 1 kV
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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