Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about the properties of semiconductors and diodes is correct?
A
A junction diode only conducts current when it is forward biased, allowing half of the AC cycle to pass through.
B
Intrinsic semiconductors have a large band gap, making them good conductors at room temperature.
C
Semiconductors have no free electrons at absolute zero temperature, behaving like insulators.
D
Half-wave rectifiers allow current to flow continuously, regardless of the biasing condition of the diode.
Correct Answer
Option A
Detailed Explanation
A junction diode allows current to pass only when forward biased, which is used in half-wave rectifiers to conduct during half of the AC cycle (Chunk 1).
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