Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Semiconductor p-n junction diode If a crystal of p-type material is joined to a crystal of n-type material a p-n junction forms.
Category: UKPCS Science_Physics
UKPCS-UKPSC Science: Conductors, semiconductors and insulators(2) #35
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Semiconductor materials Elements that are used as semiconductors, such as silicon and germanium, have four outer shell electrons. This means that they can form four Read More …
UKPCS-UKPSC Science: Conductors, semiconductors and insulators(1) #34
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS-UKPSC Science (paper #6). Classifying materials Materials can be placed into three groups according to their electrical resistance: conductors semiconductors insulators Insulators and pure semiconductors have a very high resistance, Read More …
UKPCS-UKPSC Science: Telescope #33
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). A telescope is an important tool for astronomy that gathers light and directs it to a single point. Some do this with curved mirrors, some Read More …
UKPCS-UKPSC Science: Microscope #32
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). A microscope is a scientific instrument. It makes things normally too small to be seen look larger. This way they can be seen better and Read More …
UKPCS Science: Human Eye(3) #31
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Defects of vision and their corrections: There are three common defects of vision. They are: 1) Myopia (Short-sightedness or Near-sightedness) 2) Hypermetropia (Long-sightedness or Far-sightedness) Read More …
UKPCS Science: Human Eye(2) #30
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Working of the Eye The light rays coming from the object enter the eyes through pupil and falls on eye lens. The eye lens then Read More …
UKPCS Science: Human Eye(1) #29
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). Parts of eye: Sclera: The knowledge of eye parts and functions is both useful and interesting. The white part of our eyes is known as Read More …
UKPCS-UKPSC Science: Electrical safety #28
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS -UKPSC Science (paper #6). Electricity can be hazardous. Insulation, earthing, fuses and circuit breakers help to protect us from electrical injury. Electrical energy is current multiplied by voltage Read More …
UKPCS Science: Electrical/power grid #27
Oracle IAS, the best coaching institute for UPSC/IAS/PCS preparation in Dehradun brings to you UKPCS Science (paper #6). An electrical/power grid is an interconnected network for delivering electricity from suppliers to consumers. It consists of generating stations that produce electrical power, high voltage Read More …