How many types of flow are there in a semiconductor?
A. 0
B. 1
C. 2
D. 3
E. None of the above
Answer: Option B
Solution (By Examveda Team)
The correct answer is C: 2Here's why:
In a semiconductor, there are two main types of charge carriers that contribute to current flow:
1. Electrons: These are negatively charged particles.
2. Holes: These are the absence of electrons, effectively acting as positive charge carriers. Think of them as bubbles in a liquid; when a bubble moves, it's the liquid moving around it that creates the bubble's apparent movement.
Therefore, there are two types of flow (electron flow and hole flow) in a semiconductor.
This Question Belongs to Computer Science >> Electronic Principles
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Comments (2)
In an intrinsic semiconductor, the number of free electrons
A. Equals the number of holes
B. Is less than the number of holes
C. Is greater than the number of holes
D. Impossible to say
E. None of the above
A device that converts mechanical into electrical energy is?
A. solar cell
B. thermocouple
C. chemical cell
D. generator
E. None of the above
Which one of the following kinds of materials has the lowest permeability?
A. A diamagnetic material
B. A paramagnetic material
C. A feiTomagnetic material
D. All of the above
E. None of the above
The total impedance of a parallel RLC circuit:
A. always increases as the applied frequency increases
B. is equal to the sum of the values of resistance, inductive reactance and capacitive reactance
C. always decreases as the applied frequency increases
D. is maximum at the resonant frequency
E. None of the above
The answer should be two one is electron flow and the other is a hole flow
the answer must be 2: electron flow and hole flow