Question

The forward biased diode connection is

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

A diode is forward biased when its p-side (the triangle base) is at a higher potential than its n-side (the bar).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
In the diode symbol the triangle base is the p-side (anode) and the bar is the n-side (cathode).
Forward bias needs the p-side at a higher potential than the n-side.

Step 2: Check each circuit
(A) p-side at +2 V, n-side connected through the resistor to -2 V: p is higher, so forward biased.
(B) p-side at 2 V, n-side at 4 V: n is higher, so reverse biased.
(C) both ends at -3 V: no potential difference, so no bias.
(D) p-side at -2 V, n-side at +2 V: reverse biased.

Step 3: Compare the options
Only the first circuit is forward biased, which is option (A).

Final Answer:
The circuit with +2 V on the p-side and -2 V on the n-side is forward biased. \[ \boxed{\text{(A) }\text{diode with p-side at } +2\text{ V and n-side at } -2\text{ V}} \]