# In a Potentiometer Experiment, the Balancing Length with a Resistance of 2ω is Found to Be 100 Cm, While that of an Unknown Resistance is 500 Cm. Calculate the Value of the Unknown Resistance. - Physics (Theory)

In a potentiometer experiment, the balancing length with a resistance of 2Ω is found to be 100 cm, while that of an unknown resistance is 500 cm. Calculate the value of the unknown resistance.

#### Solution

R = 2 Ω

l_R = 100  "cm"

X = ?

l_X = 500  "cm"

therefore by balancing bridge condition

R/X = l_R/l_Y

2/X = 100/500

X = 10 Ω

Concept: Potentiometer
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