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The drift velocity of free electrons in a conductor is v, when a current I is flowing in it. If both, the radius and the current is doubled, then drift velocity will be
Options
(a) v
(b) v / 2
(c) v / 4
(d) v / 8
Correct Answer:
v / 2
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An amplifier has a voltage gain Av=1000. The voltage gain in dB is
- A force of 10 newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum
- In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series
- A parallel plate capacitor with air between the plates has a capacitance of 9 pF.
- Maximum velocity of the photoelectrons emitted by a metal surface is 1.2×10⁶ ms⁻¹.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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