Difference between Amplification & Companding

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…


Electromagnetic Interference & Compatibility

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…


Inductor and Its Types

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.…


Capacitor and Its Types

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…


Which One is a Good Conductor of Electricity, Ice or Water?

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.…


Voltage, Frequency, Plug and Socket Used In Different Countries

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…


Plug & Socket types Used in Different Countries

In this article, we are giving a list of different types of Plug & Socket that are Used in Different Countries. There are currently 15 types of electrical outlet plugs. Each plug and socket combination is assigned a letter by the US Department of Commerce International Trade Administration (ITA), starting…


Difference Between CFL and LED Bulbs

  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…


Resistor Color Codes

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.…


Electrical Appliance Classes

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…


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