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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 work of 146 kJ is performed in order to compress one kilo mole fo gas adiabatically
- Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
- In old age arteries carrying blood in the human body become narrow resulting
- A moving coil galvanometer of resistance 100 Ω is converted to ammeter by a resistance
- A beam of light of wavelength 600 nm from a distant source falls
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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