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A thin semicircular conducting ring (PQR) of radius r is falling with its plane vertical in a horizontal magnetic field B, as shown in the figure. The potential difference developed across the ring when its speed is v, is
Options
(a) zero
(b) Bvπr²/2 and P is at higher potential
(c) πrBv and R is at higher potential
(d) 2rBv and R is at higher potential
Correct Answer:
2rBv and R is at higher potential
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- The maximum and minimum magnitudes of the resultant of two vectors
- If alpha, beta and gamma rays carry same momentum, which has the longest
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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