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Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively and resistance 8 Ω each.They are connected in parallel with a cell of emf 4 V and negligible internal resistance. The deflections produced in the T.G’s A and B are 30⁰ and 60⁰ respectively. If A has 2 turns, then B must have
Options
(a) 18 turns
(b) 12 turns
(c) 6 turns
(d) 2 turns
Correct Answer:
12 turns
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Perfectly black body radiates the energy 18 J/s at 300K. Another ordinary body of e=0.8
- For photoelectric emission from certain metal the cut-off frequency is v
- A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
- If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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