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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 voltage gain of an amplifier with 9% negative feedback is 10.
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
- A series R-C circuit is connected to an alternating voltage source. Consider two
- A p-n photodiode is fabricated from a semiconductor with a band gap of 2.5 eV.
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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