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The resistances of the four arms P,Q,R and S in a Wheatstone’s bridge are 10Ω, 30Ω, 30Ωand 90Ω respectively. The emf and internal resistance of the cell are 7V and 5Ω, respectively. If the galvanometer resistance is 50Ω, then the current drawn from the cell will be
Options
(a) 1.0A
(b) 1.6A
(c) 2.0A
(d) 2.6A
Correct Answer:
1.6A
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
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- A motorcycle moving with a velocity 72 kmh⁻¹ on a flat road takes a turn
- A small angled prism of refractive index 1.4 is combined with another small angled prism
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- A body is thrown with a velocity of 9.8 m/s making angle of 30° with the horizontal
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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