Amplification It is an operation of an amplifier intended to make a signal stronger by increasing the power of a signal. The amplifier output matches the input signal shape but with a larger amplitude. It may be Linear or nonlinear. Companding It is a technique for compressing and then expanding (or decomposing) an analog or … Read more
Everday we come across many electronic devices like radio, television, smartphone, computer, tablets, speakers, headphones, chargers, etc. All these devices are the source of radiated electromagnetic fields called radiated emissions. These radiated emissions are the accidental by-product of the device design. Electromagnetic Interference (EMI) It is the degradation in performance of a device due to fields … Read more
An inductor is an electronic device which stores energy in the form of magnetic field. It opposes the changes in the current passing through it. An inductor is just a coil of wire around some kind of core. The core could be just air or it could be a magnet. The amount of magnetic field … Read more
A capacitor is an electronic device which stores energy in the form of the electrostatic field. It consists of two parallel conducting plates which are separated by an insulating material known as the dielectric. The commonly used dielectrics in capacitors are paper, mica, air etc. These conducting plates could be in the form of rectangular, circular, … Read more
If you compare Ice and Water, the better conductor is obviously water. But why water is the better conductor than Ice? water contains very few ions which are responsible for conduction of electricity. Note: Pure water means water that does not contain ions. This water is water used in batteries. This water is not suitable … Read more
Here is the complete list of Voltage, Frequency, Plug, and Socket Used In Different Countries. Also Read: Plug & Socket types Used in Different Countries S.No. Country Single-phase voltage (volts) Frequency (hertz) Plug type Used 1. Abu Dhabi 230 V 50 Hz G 2. Afghanistan 220 V 50 Hz C / F 3. Albania 230 V 50 … Read more
S.No. LED CFL 1. Stands for Light emitting diode. Stands for compact fluorescent light. 2. Efficiency is high. Efficiency is low compared to LED. 3. The effective cost for long term use is less. The effective cost for long term use is more. 4. LEDs are substantially smaller as compared to CFL. CFLs are substantially … Read more
A resistor is an electrical component that opposes the flow of current. We all have seen different resistors used in the circuits. But have you noticed that there are some colour bands on the resistor? What they indicate? Actually, Resistors are coded are with colours to identify their value and function. There are different resistors depending … Read more
We use many electrical appliances in our houses, college, offices like a fan, heater, refrigerator, charger, vacuum cleaner, etc. Electrical Appliances are divided into certain classes according to the IEC 61140 standard and used to differentiate between the protective-earth connection requirements of devices. These are Class 0, Class I, Class II, and Class III. Fig. … Read more
Do you want to know if it is really possible that Photocopying Kills a Book? Strange! Yes. It is. You might have bought a new book. If you have noticed carefully, there is a message written in the book like DANGER PHOTOCOPYING KILLS THE BOOK. Actually, photocopying does not harm any book in any way. It … Read more