Hot questions

What happens when voltage passes through a capacitor?
Answer : When a voltage is applied across a capacitor, several processes occur, largely dependent on the nature of capacitors as devices that store electrical energy in the form of an electric field. ... charges and discharges, and its opposition to current depends on the frequency of the signal....

What is the driving point impedance of the RL circuit?
Answer : The driving point impedance of an RL circuit is a measure of how much the circuit resists the flow of alternating current (AC) when a voltage is applied to it. An RL circuit consists of ... to AC signals, influencing both the magnitude and phase of the current relative to the applied voltage....

What is an example of a unilateral situation?
Answer : A unilateral situation is one where a single party makes a decision or takes an action independently, without the need for approval or input from others. This can occur in various contexts ... perspectives from other stakeholders or missing out on valuable input from other parts of the organization....

Draw a neat labelling V-I characteristics of SCR and explain the region.
Answer : ### V-I Characteristics of SCR (Silicon-Controlled Rectifier): Below is an explanation along with the V-I characteristics diagram: #### Diagram Description (V-I Characteristics of SCR): 1. ** ... , indicating reverse blocking. Would you like a graphical depiction? I can generate one for you!...

What is the unit of a hydrometer?
Answer : A hydrometer is an instrument used to measure the specific gravity (relative density) of liquids. The unit of specific gravity is dimensionless because it is the ratio of the density of a liquid ... to water. But fundamentally, the primary reading of a typical hydrometer is **dimensionless**....

What is the formula for the stretched string?
Answer : The formula for a stretched string, especially in the context of its vibration and resonance, is rooted in the physics of waves and harmonics. Here's a detailed explanation: ### 1. **Fundamental ... of the string (length, tension, mass per unit length) and the frequencies at which it vibrates....

List any two functions of BEE related to energy conservation.
Answer : Could you clarify if you're looking for specific functions of the Bureau of Energy Efficiency (BEE) in India or general energy conservation practices?...

Does ECE have coding?
Answer : Yes, Electrical and Computer Engineering (ECE) often includes a significant amount of coding and programming as part of the curriculum. Here's a detailed breakdown of how coding fits into ... solving skills but also prepares students for various career paths in engineering, technology, and research....

Is ECE harder than CSE?
Answer : It depends on what you find challenging and your interests. **Electrical and Computer Engineering (ECE)** often includes a mix of electrical circuits, signal processing, electromagnetics, and hardware ... up your alley. The difficulty can vary based on your background, strengths, and career goals....

Is 230V AC or DC?
Answer : The designation of 230V typically refers to alternating current (AC), not direct current (DC). Here's a detailed explanation of what this means: ### AC (Alternating Current) vs. ... the difference between AC and DC is crucial for safely working with or understanding electrical systems....

How does a lock-in amplifier extract weak signals from noise?
Answer : A lock-in amplifier extracts weak signals from noise by using a technique called synchronous detection. It works by first modulating the signal of interest with a known reference frequency. The ... method enhances the signal-to-noise ratio, allowing for precise measurements of very weak signals....

How does a charge pump phase-locked loop work?
Answer : A Charge Pump Phase-Locked Loop (PLL) is a sophisticated electronic system used to generate stable frequencies or synchronize signals. It's widely used in communication systems, clock ... recover signals from noisy environments, making them crucial in many electronic and communication applications....

What are the 8 energy transfers?
Answer : Energy transfer refers to the movement of energy from one place or form to another. In various scientific and engineering contexts, different types of energy transfers are recognized. ... helps in designing efficient systems and solving problems across different fields of science and engineering....

Why is it called a for loop?
Answer : A **for loop** is called such because it iterates **"for"** each item in a sequence (like a list, range, or string). The term "for" signals that the loop runs a specific number of times, once for ... ). So, it's called a **for loop** because it loops for a specified range or collection of elements....

What is tesla father of?
Answer : Nikola Tesla is often referred to as the father of alternating current (AC) electrical systems. His pioneering work in developing AC power systems and technology has had a profound ... also made significant contributions in fields such as electromagnetism, radio waves, and wireless communication....

What are the three types of converters?
Answer : In electrical engineering, converters are used to change one form of electrical energy to another. The three primary types of converters are: 1. **AC to DC Converters ( ... converters is fundamental for designing and implementing power systems in various electronic and electrical applications....

What is the unit of voltage?
Answer : The unit of voltage is the **volt**, which is abbreviated as **V**. Voltage is a measure of the electric potential difference between two points in an electrical circuit. It indicates how ... a small device or a large industrial machine, voltage plays a key role in how electrical systems function....

Why is emf always greater than terminal voltage?
Answer : In an electrical circuit, the electromotive force (emf) and the terminal voltage are related but distinct concepts. Here's a detailed explanation of why the emf is always greater than the ... the amount of voltage available across the terminals, making the terminal voltage less than the emf....

How is RPM calculated?
Answer : RPM, or revolutions per minute, is a measure of the frequency of rotation. It's calculated by taking the number of complete revolutions an object makes in one minute. To calculate RPM, you can use the formula: ... \, \text{RPM} \] So, in this example, the object would be rotating at 180 RPM....

What does Lenz's law state?
Answer : ### Lenz's Law Lenz's Law is a fundamental principle in electromagnetism that describes the direction of an induced current or electromotive force (EMF) in a conductor due to a changing magnetic ... the change in the magnetic field that caused it, preserving the law of conservation of energy....