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Four cells, each of emf E and internal resistance r, are connected in series across an external resistance R. By mistake one of the cells is connected in reverse. Then, the current in the external circuit is
Options
(a) 2E/4r+R
(b) 3E/4r+R
(c) 3E/3r+R
(d) 2E/3r+R
Correct Answer:
2E/4r+R
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
- The angle of incidence for a ray of light at a refracting surface of a prism is 45⁰.
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic
- In a uniform circular motion,
- Moment of inertia, along the diameter of a ring is
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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