题目内容

Which of the following statements is false regarding the ‘drift’ of charge carriers?

A. It is the dominant carrier transport mechanism when an electric field is applied in the semiconductor.
B. Holes move in the direction opposite to that of the applied field.
C. During drift, the carrier transport is characterized by their respective electron/hole mobilities.
During drift, electrons and holes move in opposite directions.

查看答案

搜索结果不匹配？点我反馈

更多问题

What is the energy payback period in years for the PV module? ______

Assume that the PV module is used in a location where it gives an average annual PV yield of 500 kWh over its lifetime of 20 years.What is the energy yield ratio of the PV module over its lifetime of 20 years? ______

Consider a 250 Wp rated monocrystalline PV module. It results from a manufacturing process that consumes 10kWh/Wp of energy. What is the total energy consumed in kWh during the production of the module? ______

The family Smith wants to install a grid-connected PV system on their rooftop.Until now they have been using the grid electricity at €0.20/kWh, with an average annual consumption of around 3000 kWh. The PV system will cost them €4000 in total. The system is expected to have an annual yield of 2500 kWh.What will the average annual savings of the family Smith in euros be if they install the above mentioned PV system? You may assume that any PV generated power sent to the grid offsets directly the consumption of the Smith household.Given the initial system costs, what will be the payback period of the PV system in years, assuming the grid costs remain the same. You may neglect the time value of money. ______