In a meter bridge experiment, two resistor 2(Omega) and 3(Omega) occupy the left and right gaps respectively. Find the balance point from the left side of the bridge
-
A.
20cm -
B.
40cm -
C.
60cm -
D.
80cm
Correct Answer: Option B
Explanation
Let the point be x
(frac{2}{x}) = (frac{3}{100 – x})
making x subject of formula,
2(100 – x) = 3x
200 – 2x = 3x
200 = 3x + 2x
200 = 5x
divide both side by 5
x = 40cm