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JEE Main202227 Jul 2022Morning ShiftPhysicsCurrent ElectricityActual

In meter bridge experiment for measuring unknown resistance ' S ', the null point is obtained at a distance 30 cm from the left side as shown at point D . If R is 5 . 6 kΩ , then the value of unknown resistance ' S ' will be _____ Ω .

Correct answer

0

Step-by-step solution

Using balanced wheatstone condition in meter bridge R S = 70 30 Given here, R = 5 . 6   kΩ . The, S 30 = 5 . 6 × 10 3 70 S = 3 7 × 5 . 6 × 10 3 = 2400   Ω

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