What is the operating principle of LED? Working Principle: A light-emitting diode is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of […]
Why does my straw look bent in water?
Is neuropsychology a stem?
Is neuropsychology a stem? NSF considers it (and other social science fields) part of STEM, as do many other organizations and universities. US Immigration considers psychology a STEM field as well. Is psychology considered a STEM field? Psychology is a core STEM discipline because of its direct scientific and technological innovations, as well as its […]
What are 2 ways energy can be transferred?
What are 2 ways energy can be transferred? The two ways that energy can be transferred are by doing work and by heat transfer. How is thermal energy transferred within a system? Generally, when thermal energy is transferred to a material, the motion of its particles speeds up and its temperature increases. There are three […]
How many methods of coal analysis are there?
How many methods of coal analysis are there? two methods How do you know the grade of coal? The most common classification is based on rank, referring to the degree of coalification that has occurred. The rank of a coal is determined primarily by the depth of burial and temperature to which the coal was […]
How does the TCP sender understand whether there is congestion in the network?
How does the TCP sender understand whether there is congestion in the network? TCP detects congestion when it fails to receive an acknowledgement for a packet within the estimated timeout. Both these algorithms depend on counting duplicate acknowledgements sent by the data receiver in response to each additional segment received following some missing data. Does […]
What is clarification in water treatment?
What is clarification in water treatment? Clarification is an essential step in a water or wastewater treatment process to remove suspended solids through gravity settling, providing a clarified liquid effluent. A secondary function of a clarifier is the removal of floating matter (scum), which has accumulated on the water surface. What is the first step […]
What are the three 3 types of heat transfer mechanisms?
What are the three 3 types of heat transfer mechanisms? The Three Mechanisms of Heat Transfer: Conduction, Convection, and Radiation. Is a sun conduction convection or radiation? Convection is the transfer of heat energy in a fluid. Air in the atmosphere acts as a fluid. The sun’s radiation strikes the ground, thus warming the rocks. […]
What is profile tolerance?
What is profile tolerance? In GD, profile tolerance defines a uniform boundary around a surface within which the elements of the surface must lie. Profile is a complex tolerance that simultaneously controls a feature’s form, size, orientation, and sometimes location. The top figure shows the profile tolerance applied to a curved surface. How many types […]