What is diode current equation? Diode current equation expresses the relationship between the current flowing through the diode as a function of the voltage applied across it. Mathematically it is given as. Where, I is the current flowing through the diode. What is the difference between pn junction diode and solar cell? The solar cell […]
How do you calculate the maximum efficiency of a heat engine?
How do you calculate the maximum efficiency of a heat engine? The maximum theoretical efficiency of a heat engine (which no engine ever attains) is equal to the temperature difference between the hot and cold ends divided by the temperature at the hot end, each expressed in absolute temperature (Kelvin). What is the maximum efficiency […]
What benefit did the invention of the compass by the Chinese bring society?
What benefit did the invention of the compass by the Chinese bring society? Also, the magnetic compass allowed people to map out the world as they knew it, since they now knew what direction each country was in. Therefore, the magnetic compass effectively allowed Europeans to navigate across oceans and expand their empire, colonizing and […]
What bad has happened in 2020 so far?
What bad has happened in 2020 so far? The worldwide death toll from COVID-19 exceeds 700,000. Harvey Weinstein was convicted of rape and sexual assault in New York. The 2020 Summer Olympics, which were supposed to take place in Tokyo, are postponed until 2021. A Ukrainian flight crashes in Tehran, Iran, killing all 176 passengers […]
What is the process of fractional distillation?
What is the process of fractional distillation? Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of the mixture will vaporize. It uses distillation to fractionate. What is the process of cracking? Cracking, in […]
What does the compressor do in the vapor compression refrigeration system?
What does the compressor do in the vapor compression refrigeration system? The compressor does the work to raise the pressure, and the expansion valve assures that adequate pressure is retained in the condenser for heat transfer. The vapor compression cycle can be used to cool air, liquid, or cold plates. In what condition does the […]
What is a power supply of a computer?
What is a power supply of a computer? A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage. […]
What is the process of making a water bottle?
Why does steel become brittle at low temperatures?
Why does steel become brittle at low temperatures? Cooling just about anything to liquid nitrogen temperatures makes it more brittle than at higher temperatures. At higher temperatures, defects in the crystal lattice of a material are more mobile. At lower temperatures, the nearby atoms in the crystal lattice do not move and long cracks can […]
Is an internal network based on Web technologies?
Is an internal network based on Web technologies? An intranet is a network based on Web technologies that allows selected outsiders, such as business partners and customers, to access authorized resources of a company’s extranet. Is intranet LAN or WAN? An intranet is a private network. Usually intranet is not used as a term for […]