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Four identical cells of emf Ԑ and internal resistance r are to be connected in series.Suppose, if one of the cell is connected wrongly, then the equivalent emf and effective internal resistance of the combination is
Options
(a) 2E and 4r
(b) 4E and 4r
(c) 2E and 2r
(d) 4E and 2r
Correct Answer:
2E and 4r
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
- Zenor diode is used for
- Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
- A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection
- A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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