MHT CET202525 Apr 2025Morning ShiftPhysicsCurrent ElectricityActual
The current (I) drawn from the battery in the given circuit is
Options
- A0 2 ~A
- B0 5 ~A
- C0 6 ~A
- D0 8 ~A
Correct answer
B. 0 5 ~A
Step-by-step solution
Equivalent resistance calculation begins with recognizing the balanced Wheatstone bridge configuration. The resistances satisfy the balance condition R_ AB R_ AC = R_ BD R_ CD , where 5 , 10 , = 10 , 20 , , confirming no current flows through the 10 , resistor between B and C. Removing this resistor yields two parallel branches: one with R₁ = R_ AB + R_ BD = 15 , (A-B-D) and another with R₂ = R_ AC + R_ CD = 30 , (A-C-D). The total equivalent resistance is R_ eq = R₁ R₂ R₁ + R₂ = 10 , . Applying Ohm's law with batt