Electronic Devices - Semiconductors

Exercise : Semiconductors - General Questions
6.
The movement of free electrons in a conductor is called
voltage.
current.
recombination.
equilibrium.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
For a forward-biased diode, the barrier potential ________ as temperature increases.
decreases
remains constant
increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
The wide end arrow on a schematic indicates the ________ of a diode.
ground
direction of electron flow
cathode
anode
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
An n-type semiconductor material
is intrinsic.
has trivalent impurity atoms added.
has pentavalent impurity atoms added.
requires no doping.
Answer: Option
Explanation:

N-type Semiconductor :

An intrinsic semiconductor material is a poor conductor. When a small amount of pentavalent impurity is added to the intrinsic material its conductivity rises sharply. This material formed after the addition of pentavalent impurity to the intrinsic semiconductor material is called N-type material. Addition of small amount of pentavalent atoms in the intrinsic material provides large number of free electrons for conduction.


10.
For a forward-biased diode, as temperature is ________, the forward current ________ for a given value of forward voltage.
decreased, increases
increased, increases
increased, decreases
decreased, decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.