0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

On increasing temperature, the conductivity of pure semiconductors
  1. decreases.
  2. increases.
  3. remains unchanged.
  4. become zero.

A
become zero.
B
remains unchanged.
C
decreases.
D
increases.
Solution
Verified by Toppr

On increasing the temperature, the band gap length decreases, i.e., resistivity of semiconductors decrease and conductivity being inverse of resistivity increases.

Was this answer helpful?
0
Similar Questions
Q1
On increasing temperature, the conductivity of pure semiconductors
View Solution
Q2
The electrical conductivity of pure germanium can be increased by
(a) increasing the temperature
(b) doping acceptor impurities
(c) doping donor impurities
(d) irradiating ultraviolet light on it.
View Solution
Q3
Conductivity of semiconductor increases with increase in temperature.
View Solution
Q4
Assertion :A pure semiconductor has negative temperature coefficient of resistance. Reason: On raising the temperature, more charge carriers are released, conductance increases and resistance decreases.
View Solution
Q5
On increasing temperature, the conduction in metallic conductors :
View Solution