Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Semiconductors/
Question 20265
JEE Physics · Easy

Semiconductors: Diode in Circuit MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Diode in CircuitEasyQuestion 20265

Question

In a circuit with ideal diodes, a diode is forward biased (acts as short circuit) when:
  1. A
    Anode is at lower potential than cathode
  2. B
    Anode is at higher potential than cathode
    Correct
  3. C
    Both are at same potential
  4. D
    Diode is reverse biased

Correct answer

Anode is at higher potential than cathode

Explanation

Anode (+) at higher V than cathode (−) → forward bias → diode conducts (ideal: zero forward voltage drop). Reverse: anode < cathode → diode off (ideal: open circuit).

Review Semiconductors notesStart timed chapter practice