Hot questions

What are the applications of instrument amplifier?
Answer : Instrument amplifiers are specialized amplifiers designed to amplify small differential signals (i.e., the difference between two inputs) while rejecting common-mode noise (signals that are common ... and high precision, making them critical in many fields, from healthcare to industrial automation....

What is the principle of pn junction diode?
Answer : The principle of a **PN junction diode** is based on the behavior of a junction formed between two types of semiconductor materials: **P-type** and **N-type**. ### Here's how ... opposite direction (reverse bias). This property is useful in many electronic devices, such as rectifiers and switches....

How much DC is equal to AC?
Answer : To compare DC (Direct Current) and AC (Alternating Current), we typically use the concept of "equivalent DC" in terms of power or voltage. Here's how: ### 1. **Voltage Comparison:** - **DC ... . This helps compare how much DC voltage would be needed to provide the same power as an AC voltage....

Why use RTOS on Arduino?
Answer : Using a Real-Time Operating System (RTOS) on Arduino can bring several benefits, especially when you're working on more complex projects that require multitasking or precise timing. Here are some reasons ... timing, or real-time responses, and it can help scale and organize your code efficiently....

What is Ohm's Law?
Answer : Ohm's Law is a basic principle in electrical engineering that explains how voltage, current, and resistance are related in an electrical circuit. It states that: **V = I R** Where: - * ... resistor would be 20 volts. It's a simple but powerful rule to understand how electrical circuits behave!...

What is the octal of 128?
Answer : To convert the decimal number 128 to octal, we divide the number by 8 repeatedly and record the remainders. Here's how it works: 1. Divide 128 by 8: 128 8 = 16 with a remainder of 0. ... we write the remainders in reverse order: **200** So, the octal representation of 128 is **200**....

What is the principle of a voltmeter?
Answer : A **voltmeter** is an instrument used to measure the **potential difference** (or voltage) between two points in an electrical circuit. ### Principle of a Voltmeter: The basic principle ... resistance prevents it from disturbing the rest of the circuit, allowing it to take an accurate reading....

Explain the concept of return loss in RF systems.
Answer : Return loss is an important concept in Radio Frequency (RF) systems that helps to measure how well the power is transmitted through a network, like an antenna or a transmission line. In simple terms ... a higher return loss is usually better because it means less power is being reflected and lost....

What is the SI unit of electric field strength?
Answer : The SI unit of electric field strength is **volt per meter (V/m)**. Electric field strength is defined as the force experienced by a unit positive charge placed in the field. It is calculated as the force (in newtons) ... m), - \(F\) is the force (in newtons), - \(q\) is the charge (in coulombs)....

Can motor be used as generator?
Answer : Yes, a motor can be used as a generator, and this is based on the principle of **electromagnetic induction**. When a motor is running, it converts electrical energy into mechanical energy. ... , but they may not be as efficient or optimized as devices that are specifically designed as generators....

What is the formula for AC to DC?
Answer : The process of converting alternating current (AC) to direct current (DC) is typically done using a **rectifier circuit**. There isn't a single "formula" for the conversion, but the main components ... regulators can stabilize it. Let me know if you want more details on any of these steps!...

What is current law?
Answer : The **current law**, also known as **Kirchhoff's Current Law (KCL)**, is one of the fundamental rules in electrical circuits. It states that: **"The total current entering a ... Current Law helps in analyzing complex circuits, ensuring that current is conserved at every point in the circuit....

What is the basic principle of a multimeter?
Answer : The basic principle of a **multimeter** is to measure various electrical quantities, such as **voltage**, **current**, and **resistance** in a circuit. It does this by using internal ... on the selected mode, it will give you the corresponding reading, letting you analyze electrical circuits easily....

List different starting methods of three phase synchronous motor. Explain any one of them.
Answer : There are several methods to start a three-phase synchronous motor, and these methods are used to overcome the challenges of starting synchronous motors, as they require high starting torque. Some ... used because it allows the motor to start smoothly without the need for complex external equipment....

Why is Arduino mostly used?
Answer : Arduino is popular for several reasons, especially among beginners, hobbyists, and even professionals. Here's why it's widely used: 1. **User-Friendly**: Arduino is easy to use for people ... a great choice for a wide variety of applications, from simple DIY projects to complex engineering systems....

Is a rectifier AC or DC?
Answer : A rectifier is a device that converts **alternating current (AC)** into **direct current (DC)**. So, a rectifier itself doesn't produce AC or DC directly; it transforms AC (which changes direction ... output is DC, but it may still have some ripples, which can be smoothed out further using filters....

Which is the top 1 branch in engineering?
Answer : There's no clear-cut answer to which is the "top" branch in engineering, as it depends on various factors like personal interests, industry trends, and job opportunities. However, some branches ... branch depends on your interests and long-term career goals. What excites you most about engineering?...

Explain with a neat sketch fault bus protection scheme.
Answer : **Fault Bus Protection Scheme** A fault bus protection scheme is used to detect and isolate faults occurring on a busbar in electrical power systems. A busbar is a central connection ... widespread system disturbances and ensures continuity in the operation of other parts of the electrical network....

What is the meaning of 200 5 current transformer?
Answer : The term "200/5" in the context of a **current transformer (CT)** refers to its **current ratio**. Here's a breakdown of what that means: - **200**: This is the ... commonly used in power systems to measure high currents without directly connecting measurement devices to the high-current circuit....

What is the purpose of a thyristor?
Answer : A thyristor is a type of semiconductor device used primarily for switching and controlling electrical power in various applications. It acts like a switch that can turn on and off ... thyristor is to control and switch electrical power efficiently in various electronic and electrical applications....