[amp_mcq option1=”$$\frac{\mu }{{Vds}}$$” option2=”$$\frac{\mu }{{Eds}}$$” option3=”$$\mu \times Eds$$” option4=”$$\frac{{Eds}}{\mu }$$” correct=”option1″]
The correct answer is: $\boxed{\frac{\mu}{{Vds}}}$.
The velocity of an electron in a semiconductor can be given by the following equation:
$$v = \frac{\mu}{{Vds}}$$
where:
- $\mu$ is the mobility of the electron,
- $V$ is the voltage applied to the semiconductor, and
- $ds$ is the distance between the two electrodes.
The mobility of an electron is a measure of how easily it can move through a semiconductor. It is a material property that depends on the type of semiconductor and the temperature.
The voltage applied to a semiconductor creates an electric field. The electric field causes the electrons to move in the direction of the field. The distance between the two electrodes is the distance that the electrons must travel to move from one electrode to the other.
The velocity of an electron is proportional to the mobility of the electron and the electric field. The velocity of an electron is inversely proportional to the distance between the two electrodes.
Option A is incorrect because it does not include the electric field. Option B is incorrect because it does not include the mobility of the electron. Option C is incorrect because it does not include the distance between the two electrodes. Option D is incorrect because it does not include the mobility of the electron.