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In a potentiometer of one metre length, ...

In a potentiometer of one metre length, an unknown emf voltage source is balanced at 60 cm length of potentiometer wire, while a 3 volt battery is balanced at 45 cm length. The the emf of the unknown voltage source is.

A

2.25 V

B

3V

C

4V

D

4.5 V

Text Solution

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