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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 additional energy that should be given to an electron to reduce its de-Broglie
- Which of the following particles will have minimum frequency of revolution
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A radioactive element forms its own isotope after 3 consecutive disintegrations.
- A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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