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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a diatomic gas charge in internal energy for unit charge in temperature for
- A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.
- Two coils of self inductance 2 mH and 8 mH are placed so close together
- The electric current in AC circuit is given by the relation i-3 sinωt+4 cos ωt.
- A coil of N turns and mean cross-sectional area A is rotating with uniform angular
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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