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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
- A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
- The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
- When the wavelength of sound changes from 1 m to 1.01 m,
- The horizontal component of earth’s magnetic field at a place is 3×10⁻⁴ T
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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