JEE Main · 2025 · 23 Jan 2025 · Shift 2 · Current Electricity

What is the current through the battery in the circuit shown below?

(A)1.0 A
(B)1.5 A
(C)0.5 A✓ Correct
(D)0.25 A

Answer: (C)

Solution

Both diodes in the circuit are oriented so that the battery drives them into forward conduction; an ideal forward-biased diode offers no resistance, leaving only its series

20 Ω

resistor active in that branch.

The two identical branches, each

20 Ω

, are in parallel across the battery:

R_{e q} = \frac{20 \times 20}{20 + 20} = 10 Ω

i = \frac{V}{R _{e q}} = \frac{5}{10} = 0.5 A

JEE Main · 2025 · 23 Jan 2025 · Shift 2 · Single correct option

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