TS EAMCET 5-Aug-2021 Shift 2 Question Paper

Given,
As, device is meter bridge.
So, length of string be 1m i.e. 100cm
Position of balanced point from left, l1=37.5cm
Position of balanced point from right,
l2=100−37.5=62.5cm
As we know that in balanced meter bridge,
‌

l1

l2

‌‌=‌

R1

R2

‌

37.5

62.5

‌‌=‌

R1

R2

=0.6=‌

6

10

R2∕R1‌‌=‌

10

6

=‌

5

3