A multimeter is a multipurpose electronic measuring instrument extensively used by professionals to determine the faults in a circuit. A typical multimeter can be used to measure various electrical quantities such as voltage, current, resistance, transistor gain, etc.Based on the design and method used for the measurement, multimeters are classified into two types −Analog Multimeter (AMM)Digital Multimeter (DMM)The various differences between an analog multimeter and a digital multimeter are shown in the table below. We have also included a brief description on analog and digital multimeters.What is an Analog Multimeter?An analog multimeter is a type of multimeter which displays the ... Read More

Both Ammeter and Voltmeter are electrical measuring instruments used for measuring the current and voltage in an electrical circuit, respectively. Read through this article to find out more about Ammeter and Voltmeter and how they are different from each other. Before getting into the differences between Ammeters and Voltmeters, let's get some basic information about these two devices. What is an Ammeter? An electrical measuring instrument that is used to measure electric current in an electric circuit is known as ammeter. As the measurement unit of electric current is ampere and this instrument is used to measure the ... Read More

Market Targeting − DefinitionA corporation cannot focus on all market segments at the same time. Only a few segments can be satisfied by the company.The act of picking the target audience from the total market is known as market targeting. The target market is made up of a group or groups of purchasers who the company intends to serve or for whom the product is developed, with a price established, promotion efforts performed, and a distribution system in place.For example, consider a sandwich shop in a suburban town that is near to a petrol station. Because of its proximity to ... Read More

A transistor (or bipolar junction transistor) is a three-terminal, three-layer and two-junction semiconductor device, used as the digital switch and amplifier in the electronic circuits.A transistor consists of three layers of P-type and N-type semiconductor materials and the name of these layers are emitter, base and collector. The three terminals are taken out from these three layers.Based on the arrangement of the semiconductor layers, the transistors are of two types as −NPN TransistorPNP TransistorRead through this article to find out more about NPN transistor (BJT) and PNP transistor and the key differences between them.What is NPN Transistor?An NPN transistor is ... Read More

The directed flow of electrons or charge in an electric circuit is known as electric current. Based on the nature of flow of electrons (or electric current), the electric current is classified into two types: AC (Alternating Current) and DC (Direct Current). Go through this article to find out more about AC and DC and how they are different from each other.What is Alternating Current?AC stands for Alternating Current. The type of electric current whose magnitude changes continuously and direction changes periodically is known as alternating current or AC. In practice, the alternating current is produced by alternating voltage source ... Read More

A transformer is a static electric machine which changes the level of voltage and current in the circuit without changing the power and supply frequency. The electrical transformer works on the principle of mutual inductance.Based upon the number of windings used in the transformer, they can be grouped into two different categories −Two-winding transformer (or typical transformer or conventional transformer)AutotransformerRead through this article is to find out the major differences between two-winding transformer and autotransformer.What is a Two-Winding Transformer?A two-winding transformer or conventional transformer is one which consists of two magnetically coupled windings (primary and secondary) which are electrically insulated ... Read More

Power transformers and Distribution transformers are extensively used in power systems for stepping up and down the voltage level for various applications such as transmission and distribution. Read through this article to find out the major differences between power transformers and distribution transformers and how they function.What is a Transformer?A Transformer is a static electrical machine which changes the level of voltage and current in a circuit without changing the frequency of the supply. Transformers works on the principle of electromagnetic induction.Based on the design, operation, purpose of use, transformers are classified into different types such as auto-transformer, current transformer, ... Read More

LED lamps consume less energy as compared to Halogen lamps. LED lamps are cost efficient too. Read through this article to find out the major differnces between LEDs and Halogen lamps and how they function.What is LED Lamp?An electric lamp which produces light by using light emitting diodes or LEDs is known as an LED lamp or LED light bulb. An LED lamp works on the principle of electroluminescence, i.e. it emits the light due to the interaction of an electric field with a suitable solid.Basically, an LED is a specially doped PN junction diode which is made of special ... Read More

Both analog and digital circuits are extensively used in various fields of electrical and electronics engineering for signal processing. Go through this article to find out how analog and digital circuits function and how they differ from each other.What is an Analog Circuit?An analog circuit is a type electronic circuit that can process any analog signal or data and produce an output in analog form. Analog circuits are composed of resistors, inductors and capacitors, etc.The type of signal which is a continuous function of time is known as an analog signal. All the real-world signals are the analog signals, therefore, ... Read More

Series and Parallel electric circuits are heavily used in various applications such as resistive series circuits, voltage divider circuits, home appliances, etc. It is important to have a good knowledge of how these circuits work. Go through this article to get an overview of how Series and Parallel circuits operate and how they differ from each other.What is an Electric Circuit?An electrical network which has closed path for electric current to flow is known as electric circuit or circuit. An electric circuit consists various circuit elements such as energy sources, resistors, inductors, capacitors, etc. An electric circuit must have at ... Read More