Question

In the following circuit diagram, if the diode is ideal, what is the value recorded by the ammeter?

• A. Zero
• B. 0.25 A
• C. 0.5
• D. 0.75

Answer 1

The correct option is B 0.25 A

Let the current through the circuit be I.

The diode is ideal. So there is no voltage drop across it.

$\therefore 5V=10I+10I\Rightarrow 5=20I\therefore I=\frac{5}{20}A=0.25A$