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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
- If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
- A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
- A coil has resistance 30 ohm and inductive reactance 20 ohmn at 50 Hz frequency.
- If a mass of 20g having charge 3.0 mC moving with velocity 20ms⁻¹ enters a region
- A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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