Recent questions

by Expert-1 in Signal & Systems asked 1 week ago 7 views

Determine whether the systems given by following equations are Linear/Non linear. Shift Variant / Shift Invariant y(t) = 2x(t-3) + x(2-t) y(t) = x²(t-t₀) + 2
Answer : Step-by-Step Explanation of Visuals System 1: y1(t)=2x(t−3)+x(2−t)y_1(t) = 2x(t-3) + x(2-t) Input Signal: The ... These plots should help visualize the system behaviors step-by-step. Let me know if you'd like further clarifications or additional analysis! ...

by Expert-1 in Signal & Systems asked 1 week ago 17 views

What is system ?
Answer : ### **What is a System in Signals and Systems?** In the study of **Signals and Systems**, a **system** is any physical device, process, or mathematical operation that ... and designing systems for various applications in engineering, such as audio processing, control systems, and communication....

by Expert-8 in Signal & Systems asked 2 weeks ago 17 views

What is an impulse response of a system, and why is it significant for understanding LTI systems?
Answer : An impulse response is one of the most important concepts in understanding Linear Time-Invariant (LTI) systems. Let's break down what it is and why it matters. 1. What is an Impulse? ... systems behave, how filters work, and how signals can be manipulated in both time and frequency domains. ...

by Expert-8 in Electrical Engineering asked 1 month ago 308 views

Sketch signals given by following equations : 1. x(t) = u(t) - u(t-1) 2. x(t) = δ(t+1) - δ(t-1)
Answer : x(t) = δ(t+1) - δ(t-1) ...

by Expert-4 in Electrical Engineering asked 1 month ago 70 views

Define the following ratings of a motor: (i) Horsepower rating (ii) Short-time rating
Answer : (i) **Horsepower rating**: The horsepower rating of a motor refers to the maximum power output that the motor can deliver continuously without overheating under standard operating conditions. It is a ... used when the motor is expected to operate for brief periods and then allowed to cool down....

by Expert-4 in Electrical Engineering asked 1 month ago 59 views

A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.
Answer : --- ### What We Need to Do: We need to find the **equivalent power** of the motor. This is the steady power that the motor would need to operate continuously, while doing the same total work as in the cycle described. ... }. \] --- ### Final Answer: The motor should have a size of **61.1 HP**....

by Expert-1 in Electrical Engineering asked 1 month ago 85 views

What is light?
Answer : Light is a type of energy that travels in waves and allows us to see the world around us. It's a form of energy called electromagnetic radiation. Here's what you need to know: 1. **How Light ... light is energy that lets us see and understand the world around us. It's essential for life on Earth!...

by Expert-1 in Electrical Engineering asked 1 month ago 85 views

explain electricity in simple terms.
Answer : Electricity is the flow of tiny particles called electrons. These particles move through materials to carry energy, and this movement powers many things we use every day, like lights, phones, ... s essential for modern life, and understanding its basics helps us appreciate the technology around us....

by Expert in Electrical Engineering asked 1 month ago 45 views

What is encoding and its types?
Answer : ### What is Encoding? Encoding is the process of converting data or information from one form into another. This is commonly done to make the data suitable for storage, transmission, or ... is chosen based on the requirements of the application, such as efficiency, compatibility, and security....

by Expert in Electrical Engineering asked 1 month ago 42 views

What is digital encoding?
Answer : Digital encoding is the process of converting information, such as text, audio, video, or other types of data, into a digital format that can be easily processed, transmitted, and ... encoding ensures that data can be handled efficiently and accurately by computers and other digital technologies....

by Expert in Electrical Engineering asked 1 month ago 45 views

What is NRZ and RZ?
Answer : **NRZ (Non-Return-to-Zero) and RZ (Return-to-Zero)** are two types of encoding schemes used in digital communication systems to represent binary data as electrical ... between synchronization, bandwidth, and implementation complexity, and the specific requirements of the communication system....

by Expert in Electrical Engineering asked 1 month ago 34 views

What is the difference between unipolar and bipolar line coding?
Answer : Unipolar and bipolar line coding are two methods used in digital communication to represent binary data (1s and 0s) using electrical signals. These methods are used in the physical layer of ... , power efficiency, and error detection, making it more suitable for more demanding communication systems....

by Expert in Electrical Engineering asked 1 month ago 49 views

Why is analog used?
Answer : Analog technology is still used in many applications today for several reasons, even though digital technologies have advanced significantly. Here are some key reasons why analog is still ... can sometimes be more practical in specific, resource-constrained, or fidelity-sensitive scenarios....

by Expert in Electrical Engineering asked 1 month ago 25 views

What is an analog example?
Answer : An **analog example** refers to a situation, object, or concept that is similar to another, often in terms of function or structure, but in a different form or medium. Analogies are used ... it to something that's easier to relate to, breaking down complex ideas into more digestible parts....

by Expert in Electrical Engineering asked 1 month ago 19 views

What is an example of a digital conversion?
Answer : An example of digital conversion is the **Analog-to-Digital Conversion (ADC)** process, where an analog signal (such as a continuous audio signal, temperature measurement, or voltage) is ... and analysis. This conversion allows analog real-world signals to be interpreted by digital systems....

by Expert in Electrical Engineering asked 1 month ago 16 views

What are the two types of conversion?
Answer : In the context of electrical engineering, the term "conversion" generally refers to the transformation of energy from one form to another or the change of one type of electrical signal ... work and how they impact efficiency, performance, and compatibility in electrical devices and systems....

by Expert in Electrical Engineering asked 1 month ago 16 views

What are the 4 steps of conversion?
Answer : The **four steps of conversion** are typically used in various contexts such as business, marketing, or even in scientific and technical processes. I'll outline the general concepts for **conversion* ... for practical purposes. If you meant a different type of conversion, feel free to clarify!...

by Expert in Electrical Engineering asked 1 month ago 20 views

What is sample and hold in digital to analog converter?
Answer : **Sample and Hold** is a critical concept in the operation of many digital-to-analog converters (DACs) and other types of signal processing systems. It is used to capture ... from unwanted fluctuations, allowing for smooth analog signals in applications like audio, communications, and measurements....

by Expert in Electrical Engineering asked 1 month ago 14 views

What is an ADC and DAC converter?
Answer : Analog-to-Digital Converters (ADC) and Digital-to-Analog Converters (DAC) are essential components in electronic systems for bridging the gap between the analog and digital worlds. Here's a ... signals (e.g., sound, temperature, light) with digital systems like microcontrollers and computers....

by Expert in Electrical Engineering asked 1 month ago 18 views

What is the application of direct coupling amplifier?
Answer : A **direct coupling amplifier** is an amplifier where successive stages are directly connected without using any coupling components like capacitors or transformers. This design allows the ... play an essential role in fields like electronics, instrumentation, communication, and medical systems....