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Two cells when connected in series are balanced on 8m on a potentiometer. If the cells are connected with polarities of one of the cells is reversed, then they balance on 2m. The ratio of emfs of two cells is
Options
(a) (3:4)
(b) (4:3)
(c) (3:5)
(d) (5:3)
Correct Answer:
(5:3)
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 black body is heated from 27° C to 127° C. The ratio of their energies of radiations
- A coin placed on a rotating turn table just slips,if it is placed at a distance
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- Three identical spherical shells, each of mass m and radius r are placed
- Two concentric coils each of radius equal to 2π cm are placed at right angles
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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using the formula El/E2=L1+L2/L1-L2