In a semiconductor,...

In a semiconductor,

A

there are no free electrons at 0K

B

there are no free electorns at any temperature

C

the number of free electrons increases with temperature

D

the number of free electrons is less that in a conductor.

Text Solution

Verified by Experts

The correct Answer is:

A, B, D

Promotional Banner

Promotional Banner

Topper's Solved these Questions

SEMICONDUCTOR AND SEMICONDUCTOR DEVICES
HC VERMA|Exercise objective II|1 Videos
SEMICONDUCTOR AND SEMICONDUCTOR DEVICES
HC VERMA|Exercise exercises|35 Videos
SEMICONDUCTOR AND SEMICONDUCTOR DEVICES
HC VERMA|Exercise Objective 1|15 Videos
PHOTOMETRY
HC VERMA|Exercise Exercises|16 Videos
SPEED OF LIGHT
HC VERMA|Exercise Exercises|3 Videos

HC VERMA-SEMICONDUCTOR AND SEMICONDUCTOR DEVICES-Objective 2

In a semiconductor,
Text Solution
|
In a p-n junction with open ends,
Text Solution
|
The impurity atoms with which pure silicon may be increased by
Text Solution
|
The electrical conductivity of pure germanium can be increased by
Text Solution
|
A semiconducting device is connected in a series circuit with a batter...
Text Solution
|
A semiconductor is doped with a donor impurity
Text Solution
|
Let iE,IC and iB represent the emitter current,the collector current a...
Text Solution
|
In a normal operation of a transistor,
Text Solution
|
An AND gate can be prepared by repetitive use of
Text Solution
|