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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
- A tube of length L is filled completely with an incompressible liquid of mass
- Electric field at a point of distance r from a uniformly charged wire of infinite
- The phase difference between the flux linked with a coil rotating in a uniform
- Amout of heat required to raise the temperature of a body through 1 K is called its
- A thermodynamic system undergoes cyclic process ABCDA as shown in figure
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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