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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the relation n=PV/RT, n stands for
- The e.m.f. of a battery is 2 V and its internal resistance is 0.5 Ω. The maximum
- The drift speed of electrons in copper wire of diameter and length l is v.
- The momentum of a photon of energy 1 MeV in kg m/s will be
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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