QJEEM22Pha8b8: JEE Main 2022 Physics - Class 12 JEEM22Pha8b8 Solution: All resistances in figure are 1 Ω each. The value of current…

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All resistances in figure are 1 $Ω$ each. The value of current 'I' is $\frac{a}{5}$ A. The value of a is _________.

JEE Main 2022 (Online) 28th June Evening Shift Physics - Current Electricity Question 153 English

Accepted Answer

JEE Main 2022 (Online) 28th June Evening Shift Physics - Current Electricity Question 153 English Explanation

Let the current is i

Using Kirchhoff's law

$i R + \frac{i}{2} R + \frac{i}{4} R + \frac{i}{8} R = 3$

$i = \frac{3 \times 8}{15} = \frac{8}{5} A$

So $a = 8$

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