Two ideal junction diodes D1, D2 are connected as shown in the figure. A 3 V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is

Question

Two ideal junction diodes D1, D2 are connected as shown in the figure. A 3 V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is (A) 0.1A (B) 0.3 A (C) 0.9 A (D) 90 A

Tardigrade Admin · Accepted Answer

If positive terminal is connected to A , D 1 is in forward bias and D 2 is in reverse bias. So 20 W is ineffective. ∴ i=(V/R)=(3/10)=0.3 A

Q. Two ideal junction diodes $D_{1}, D_{2}$ are connected as shown in the figure. A $3 V$ battery is connected between $A$ and B. The current supplied by the battery if its positive terminal is connected to $A$ is

0.1A

0.3 A

0.9 A

90 A

If positive terminal is connected to $A, D_{1}$ is in forward bias and $D_{2}$ is in reverse bias. So $20 W$ is ineffective.
$∴ i = \frac{V}{R} = \frac{3}{10} = 0.3 A$

Q. Two ideal junction diodes D1​,D2​ are connected as shown in the figure. A 3V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is