In a poteometer a cell of emf 1.5V gives a balanced point 32cm length of the cell is replaced by another cell then the balance point shifts to 65.0cm

Question

In a poteometer a cell of emf 1.5V gives a balanced point 32cm length of the cell is replaced by another cell then the balance point shifts to 65.0cm

In a poteometer a cell of emf 1.5V gives a balanced point 32cm length of the cell is replaced by another cell then the balance point shifts to 65.0cm the emf of second cell is
A. 3.05V
B. 2.05V
C. 4.05V
D. 6.05V

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Here, in the balance condition of potentiometer
`(epsi_(1))/(epsi_(0))=(l_(1))/(l_(2)) or epsi_(1)=1.5V, l_(1)=32cm, l_(2)=65cm`
`therefore epsi_(2)=epsi_(1)xx(l_(2))/(l_(1))=1.5xx(65)/(32)=3.05V`

4 views Answered 2023-02-05 15:29