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JEE Main202315 Apr 2023Morning ShiftPhysicsCurrent ElectricityActual

A network of four resistances is connected to 9 V battery, as shown in figure. The magnitude of voltage difference between the points A and B is __________ V .

Correct answer

0

Step-by-step solution

The resistance in each branch is 6   Ω . They are in parallel. So, net resistance is R ' = 6 2 = 3   Ω . The total current flowing through the loop, I = V R ' = 9   V 3   Ω = 3   A Thus, through each branch the current is 1 . 5   A . Hence, the voltage difference across the points is V A - V B = 4 × 1 . 5 - 2 × 1 . 5 = 3   V

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