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A 2 V battery is connected across AB as shown in the figure. The value of the current supplied by the battery when in one case battery’s positive terminal is connected to A and in other case when positive terminal of battery is connected to B will respectively be [Figure: two parallel branches between a left rail and a right rail: top branch D₁ pointing right with 5 Ω; lower branch D₂ pointing left with 10 Ω. Terminal A is on the left rail and B on the right rail.]

Asked in JEE Main Online 2015 · Circuits with diodes

• (1) 0.2 A and 0.1 A
• (2) 0.4 A and 0.2 A
• (3) 0.1 A and 0.2 A
• (4) 0.2 A and 0.4 A

Step-by-step solution

Why the other options are wrong

• (1) Halves both currents, as if the resistances were doubled.
• (3) Swaps the branches and halves the currents.
• (4) Swaps which branch conducts in each case.

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