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  • In a potentiometer circuit a cell of EMF 1.5 V gives balance point at 36 cm length of wire. If another cell of EMF 2.5 V replace the first cell, then at what length of the wire, the balance point o

In a potentiometer circuit a cell of EMF 1.5 V gives balance point at 36 cm length of wire. If another cell of EMF 2.5 V replace the first cell, then at what length of the wire, the balance point occurs?

 

Option: 1

60 cm


Option: 2

21.6 cm


Option: 3

64 cm


Option: 4

62 cm


Answers (1)

best_answer

\frac{E_{1}}{E_{2}}=\frac{l_{1}}{l_{2}}

\frac{1.5}{2.5}=\frac{36}{l_{2}}

\frac{3}{5}=\frac{36}{l_{2}}                        {l_{2}}=60 Cm

Posted by

himanshu.meshram

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