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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 pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle
- A compass needle which is allowed to move in a horizontal plane
- An experiment takes 10 minutes to raise temperature of water from 0⁰C to 100⁰C
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
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