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Two cells of emfs E(1) and (E(2) (E(1) g...

Two cells of emfs `E_(1)` and `(E_(2) (E_(1) gt E_(2))` are connected as shows in Fig. `6.45`.

When a potentiometer is connected between `A` and `B`, the balancing length of the potentiometer wire is `300 cm`. On connecting the same potentiometer between `A` and `C`, the balancing length is `100 cm`. The ratio `E_(1)//E_(2)` is

A

`3:1`

B

`1:3`

C

`2:3`

D

`3:2`

Text Solution

Verified by Experts

The correct Answer is:
D
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DC PANDEY-CURRENT ELECTRICITY-Taking it together
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