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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
- The moment of inertia of a rod about an axis through its centre and perpendicular
- The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
- A wire carrying current I has the shape as shown in adjoining figure. Linear parts
- RMS velocity of gas is proportional to
- If two vectors 2i+3j+k and -4i-6j-λk are parallel to each other, then the value of λ is
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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