Question

A POTENTIOMETER WIRE HAS A POTENTIAL GRADIENT OF 10-²v/cm.THE BALANCING LENGTH FOR TWO CELLS ARE 450Cm & 150Cm FOR SUM AND DIFFERENCE METHOD.
DETERMINE THE Emfs.
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Answer 1

Answer: 4.5V&1.5V

Explanation:

We know that

E=potential gradient×balancing length

So,,,,,E1=10^-2×450=4.5V

& E2=10^-2×150=1.5V

Hope it helps u