In this category we are going to learn about all types of electronics components which are use for new product development & repair.
In this tutorial, we are going to learn about Best Tutorial Electronics & Electrical Engineer Interview Questions & Answers. 1) What the number of parasitic elements in yagi antenna? The number of 2 parasitic elements. 2) What is the dominant mode in a rectangular waveguide is Dominant mode in a rectangular waveguide is TE11 3) … Read more
In this tutorial, we are going to learn about Relay. How to Relay Work? Relay – It is control a switch in a magnetic way. Whenever any electric current passes through a coil, then adjacent switch changes its state from disconnection to connection or vice versa, making it very useful for control, with a small … Read more
In this tutorial, we are going to learn about Opto-Coupler. What is Opto-Coupler? It is circuit which optically couples to the signal of one circuit to the other circuit, for example – when couple the low voltage circuit to high voltage circuit, then the help of the opto-coupler we can protect the low voltage from … Read more
In this tutorial, we are going to learn about Interview Questions and Answer about Op-Amp What is Op-Amp? Answer – An operational amplifier is an analog circuit which takes a differential voltage input and produces a single ended voltage output. The inverting input is denoted with a mines (-) and the non inverting input denoted … Read more
In this tutorial, we are going to learn about diode & its applications. What is Diode? It is two lead semiconductor which acts as a one way gate to electron flow. It allows current to pass in only one direction. It is combination of PN junction diode which is formed by joining together p type … Read more
What is LED? It is two lead semiconductor devices. It is light emitting PN – junction diode. It is visible or infrared light. It has two polarity anode (+) and cathode (-). It is recall diodes act as a one way gate to current flow. It is forward biased PN – junction diode allows current … Read more
In this tutorial, we are going to learn about phototransistors. What is Phototransistor? It is a light sensitive transistor. In one common type of phototransistor, the base lead of a BJT is replaced by a light sensitive surface. When the light sensitive surface, if the base is kept in darkness, the collector – emitter pair … Read more
In this tutorial, we are going to learn about photodiode. What is Photodiode? It is two lead semiconductor devices which transform light energy to electric current. Below image of photodiode symbol. It is a semiconductor device with a P-N junction which converts photons into electrical current. The P layer has holes (positive), and the N layer … Read more
In this tutorial, we are going to learn about the Difference between SMD and Through-Hole Components. What is SMD Component? SMD – Surface Mounted Device (SMD), which don’t require any PTH as the component will be soldered on the component side itself as shown in below image of SMD components mounted on PCB. SMD is an … Read more
In this tutorial, we are going to learn about USB (Universal Serial Bus) & Its Types. USB (Universal Serial Bus) It was invented by compact, Intel, Microsoft, IBM in 1996. It is standard which is used to peripherals to a computer. As per its name universal, The USB port is used to connect many different … Read more