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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: - The unit of reactance is
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The unit of reactance is
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- An electron having charge e and mass m is moving in a uniform electric field E.
- Dispersion of light is caused due to
- Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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