Answer:
The flow of a charge is called electric current.
Explanation:
Power tools are usually run on one of the three types of power: Compressed air, electricity, or combustion
Answer:
(b) for imparting motion to a mechanical part
Explanation:
a screw is a made of metal material usually hard metal it is mainly consist of a head at one end and a point at other end it also consist a shaft by virtue of which it can be change into other material there are many type of screw present translating type is one of them which is mostly use for imparting motion to a mechanical part
Answer:
Creating vacancies in ceramics. Consider doping ZrO₂ with small concentrations of Nb205. The valence of Nb is 5. Assume that Nb ions sit in Zr ion sites
a. A substitutional defect will be produced.
b. With this dopping, the Nb increases electron band conduction and decreases oxygen anion conduction in ZrO₂.
Explanation:
(a) The defect produced by dopping a little concentration of Nb₂O5 with Nb in the +5 charge state is known as a substitutional defect.
(b) With this dopping, the Nb increases electron band conduction and decreases oxygen anion conduction in ZrO₂.
Moreover, if oxygen vacancies are rate-limiting defect, the corrosion of ZrO₂ decreases and if electrons are rate-limiting then the corrosion of ZrO₂ is accelerated.
