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JEE MAIN 2021
25-07-21 S2
Question
In the given potentiometer circuit arrangement, the balancing length AC is measured to be 250 cm . When the galvanometer connection is shifted from point (1) to point (2) in the given diagram, the balancing length becomes 400 cm . The ration of the emf of two cells, $\frac{\varepsilon_1}{\varepsilon_2}$ is :
Select the correct option:
A
$\frac{5}{3}$
B
$\frac{8}{5}$
C
$\frac{4}{3}$
D
$\frac{3}{2}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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Physics
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