Rankers Physics

Properties of Semiconductors: Practice Problem & Solution

At absolute zero, Si acts as (1988)
Non metal
Metal
Insulator
None of these

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Properties of Semiconductors. Understanding the underlying formula is key to arriving at the correct answer below:

At absolute zero (0 K), electrons in a semiconductor like Silicon do not have any thermal energy to cross the band gap. The conduction band remains completely empty, making it act as a perfect insulator.

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. GaAs (with a band gap = 1.5 eV) as an LED can emit :
2. A conducting wire of Copper and Germanium are cooled from room temperature to temperature 80K, then their resistance will :
3. In a p-n junction diode, change in temperature due to heating (2018)
4. Assertion (A): The temperature coefficient of resistance is positive for p-type semiconductors and negative for n-type semiconductors. Reason (R): The effective charge carriers in p-type semiconductors are electrons and in n-type semiconductors are holes.  
5. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): A digital circuit that follows logical relationship between the input and output voltages are generally known as logic gates. Reason (R): NOR and NAND gates are not considered as universal gates. In the light of above statements, choose the correct answer from the options given below.