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Current Electricity question

2022 · 26 Jul · Shift 1 · Q68
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Current Electricity question

2022 · 26 Jul · Shift 1 · Q68

JEE MainPhysicsCurrent ElectricityNumerical+4 / −1
Resistances are connected in a meter bridge circuit as shown in the figure. The balancing length l1l_{1}l1​ is 40 cm40 \mathrm{~cm}40 cm. Now an unknown resistance xxx is connected in series with P\mathrm{P}P and new balancing length is found to be 80 cm80 \mathrm{~cm}80 cm measured from the same end. Then the value of xxx will be ‾\underline{\hspace{2cm}}​Ω\OmegaΩ. JEE Main 2022 (Online) 26th July Morning Shift Physics - Current Electricity Question 135 English
Numerical answer
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