The value of current I in the electrical circuit as given below,… | JEE Main 2025 Physics PYQ

MCQMediumJEE Main 2025 · 28 January, Shift 2Wheatstone Bridge & Meter Bridge

The value of current $I$ in the electrical circuit as given below, when the potential at $A$ is equal to the potential at $B$ , will be (in $\text{A}$ ):

Circuit with a 40 V battery in the outer loop, current I entering and leaving a bridge network, top resistors 10 ohm and 20 ohm with node A between them, bottom resistors R and 40 ohm with node B between them, and a 30 ohm resistor vertically between A and B.

A
$1.0$
B
$2.0$
C
$0.5$
D
$4.0$

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