Problems on electrical power and energy

Problems on electrical power and energy
by

1 Answer

Answer :

Problem on electrical power and energy 1 : https://youtu.be/ZvWHuMdmv9g

Problem on electrical power and energy 2 : https://youtu.be/19IZMc6U2vs

Problem on electrical power and energy 3 : https://youtu.be/mSPf29Y4YEU

Problem on electrical power and energy 4 : https://youtu.be/VE_YYrXAbMo

Problem on electrical power and energy 5 : https://youtu.be/6xJ3zQEW6Tg

Problem on electrical power and energy 6 : https://youtu.be/M2k716ZQ018

Problem on electrical power and energy 7 : https://youtu.be/iYqGIwA919A

Problem on electrical power and energy : https://youtu.be/iWnWQz_mzHk
by

Related questions

Problem on electrical power and energy 2

Description : Problem on electrical power and energy 2

Last Answer : Problem on electrical power and energy 2

Problem on electrical power and energy 1

Description : Problem on electrical power and energy 1

Last Answer : Problem on electrical power and energy 1

Problem on electrical power and energy 7

Description : Problem on electrical power and energy 7

Last Answer : Problem on electrical power and energy 7

Problem on electrical power and energy 6

Description : Problem on electrical power and energy 6

Last Answer : Problem on electrical power and energy 6

Problem on electrical power and energy 5

Description : Problem on electrical power and energy 5

Last Answer : Problem on electrical power and energy 5

Problems on resistance and resistivity

Description : Problems on resistance and resistivity

Last Answer : Problem on resistance and resistivity 1 : https://youtu.be/OqavD7OlZUs Problem on resistance and resistivity 2 : https://youtu.be/0eo8VO8cpwk Problem on resistance and resistivity 3 : https:// ... https://youtu.be/3neLRCTz0RQ Problem on resistance and resistivity 13 : https://youtu.be/vBCkvPOiztY

Problem on resistance and resistivity 13

Description : Problem on resistance and resistivity 13

Last Answer : Problem on resistance and resistivity 13

Problem on resistance and resistivity 12

Description : Problem on resistance and resistivity 12

Last Answer : Problem on resistance and resistivity 12

Problem on resistance and resistivity 11

Description : Problem on resistance and resistivity 11

Last Answer : Problem on resistance and resistivity 11

Problem on resistance and resistivity 10

Description : Problem on resistance and resistivity 10

Last Answer : Problem on resistance and resistivity 10

Problem on resistance and resistivity 9

Description : Problem on resistance and resistivity 9

Last Answer : Problem on resistance and resistivity 9

Problem on resistance and resistivity 8

Description : Problem on resistance and resistivity 8

Last Answer : Problem on resistance and resistivity 8

Problem on resistance and resistivity 7

Description : Problem on resistance and resistivity 7

Last Answer : Problem on resistance and resistivity 7

Problem on resistance and resistivity 6

Description : Problem on resistance and resistivity 6

Last Answer : Problem on resistance and resistivity 6

Problem on resistance and resistivity 5

Description : Problem on resistance and resistivity 5

Last Answer : Problem on resistance and resistivity 5

Problem on resistance and resistivity 4

Description : Problem on resistance and resistivity 4

Last Answer : Problem on resistance and resistivity 4

Problem on resistance and resistivity 3

Description : Problem on resistance and resistivity 3

Last Answer : Problem on resistance and resistivity 3

Problem on resistance and resistivity 2

Description : Problem on resistance and resistivity 2

Last Answer : Problem on resistance and resistivity 2

Problem on resistance and resistivity 1

Description : Problem on resistance and resistivity 1

Last Answer : Problem on resistance and resistivity 1

State the impact of inductance and resistance on transmission line performance

Description : State the impact of inductance and resistance on transmission line performance

Last Answer : Impact of inductance on transmission line: 1) It causes IXL drop in transmission line which affects regulation. 2) It is the only parameter which decides power transmission capacity of line i. ... is very small, it causes losses, temperature rise& poor voltage regulation so it cannot be neglected

Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life.

Description : Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life. 

Last Answer : 1) Effect on Current:- In LED current depends upon supply voltage, if voltage get changes then current also change but this change in current will be control by resistors which are connected in series.  2) ...   4) Effect on Life:- If supply voltage is not stable then life of LED get reduced. 

Compare the salient features of LED and CFL based on: i] Lamp Efficiency ii] Life span

Description :  Compare the salient features of LED and CFL based on: i] Lamp Efficiency ii] Life span 

Last Answer : Parameter LED CFL Lamp Efficiency  High (more than 70 lumen per watt) Comparatively less (50-60 lumen per watt) Life span (in working hours) 10000 3000

Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties.

Description : Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties. 

Last Answer : Following are requirements of conductor:- i) High conductivity :  Material should have high conductivity, So that * cross section of conductor (size) reduces, * Copper losses reduces, * So Efficiency ... . Boiling point is 1820°C 9. Specific gravity is 2.7 10. High resistance to corrosion. 

Explain the procedure of detailed energy audit.

Description : Explain the procedure of detailed energy audit.

Last Answer : Detailed Energy Audit Detailed audit provides a detailed project implementation plan for a facility, since it evaluate all major energy using systems. This type of audit offers the ... Management aspects of design and operating data collection, field measurements, data analysis, and training

Outline any four duties and responsibilities of energy manager.

Description : Outline any four duties and responsibilities of energy manager.

Last Answer : Responsibilities and Duties of Energy Manager Responsibilities Prepare an annual activity plan and present to management concerning financially attractive investments to reduce energy costs Establish an ... and manner as may be provided in the regulations of the Energy Conservation Act.

Illustrate the benefits of hydrogen energy as a future energy.

Description : Illustrate the benefits of hydrogen energy as a future energy.

Last Answer : Benefits of Hydrogen Energy The use of hydrogen greatly reduces pollution. When hydrogen is combined with oxygen in a fuel cell, energy in the form of electricity is produced. This electricity can ... sources of fuel. This ideally means that you need less hydrogen to complete an enormous task.

State various types of energy losses with their control measures in any utility.

Description : State various types of energy losses with their control measures in any utility.

Last Answer : Energy loss and control in any utility Energy saving opportunities in cooling tower (These measures will save electrical energy used in fan or pumps) 1. Follow manufacturer's recommended ... Preheating combustion air 10. Switching from steam to air atomization Switching to lower cost fuel

Explain energy conservation and its importance.

Description : Explain energy conservation and its importance.

Last Answer : Energy conservation Energy Conservation is the deliberate practice or an attempt to save electricity, fuel oil or gas or any other combustible material, to be able to put to additional use for ... are produced. e) Generally to relieve shortage and improve development. f) Advantage in PAT scheme.

Classify energy sources with two examples each.

Description : Classify energy sources with two examples each.

Last Answer : Types of energy Source  Primary energy source is an energy form found in nature that has not been subjected to any conversion or transformation process. The primary energy sources are derived from: the sun, ... energy sources: These sources can renew again and again. e.g Solar, Wind, Biomass, Hydro

State two objectives of energy audit.

Description : State two objectives of energy audit.

Last Answer : Objective of energy audit  To determine ways to reduce energy consumption per unit of product output or to lower operating costs. Energy Audit provides a bench-mark" (Reference ... effective use of energy throughout the organization. Provide detailed documentation for monitoring of energy use

State the use of Lux Meter and Tachometer in energy audit.

Description : State the use of Lux Meter and Tachometer in energy audit.

Last Answer : Use of lux meter – to measure intensity of light Use of tachometer – to measure speed

List four environmental benefits of wind energy.

Description : List four environmental benefits of wind energy.

Last Answer : Environmental benefits of Wind Energy 1. Renewable & Sustainable 2. Environmentally Friendly 3. Reduces Fossil Fuel Consumption 4. Small Footprint

State any two units of energy.

Description : State any two units of energy.

Last Answer : Units of energy: Joule Calorie Kilowatt Kilowatt-hour Watt

State the difference between energy conservation and energy audit.

Description : State the difference between energy conservation and energy audit. 

Last Answer : energy conservation Energy audit It is reducing the growth of energy consumption by avoiding unnecessary usage of energy It is an inspection, survey & analysis of energy flows ... Various measuring instruments, with proper sensing elements are required for the energy audit. 

State different types of electrical signal and draw all types of waveforms.

Description : State different types of electrical signal and draw all types of waveforms.

Last Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms

Briefly explain how an electrical generator converts mechanical energy into electrical energy

Description : Briefly explain how an electrical generator converts mechanical energy into electrical energy.

Last Answer : Working principle of DC generator: * Working principle of DC generator is the principle of dynamically induced emf or electromagnetic induction. * According to this principle, when flux is cut by a conductor, an ... , the flux is cut by the armature winding and an emf is dynamically induced in it. 

In fuel cell the __________ energy is converted into electrical energy.

Description : In fuel cell the __________ energy is converted into electrical energy.  (A) Mechanical (B) Chemical (C) Heat (D) Sound

Last Answer : In fuel cell the Chemical energy is converted into electrical energy. 

Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

Description : Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

Last Answer : 1. A step down transformer 2. A rectifier 3. A filter 4. A regulator Operation of Regulated Power Supply:- Step Down Transformer:- A step down transformer will ... regulator. A regulator will maintain the output constant even when changes at the input or any other changes occur.

AC power plugs and sockets

Description : AC power plugs and sockets

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Explain the importance of solar power in the energy deficient India.

Description : Explain the importance of solar power in the energy deficient India.

Last Answer : Mainly electricity generated in India is from -  Hydro power plant  Thermal power plant  Nuclear power plant  BUT,  To construct new Hydro power plant following are problem :- 1. There is ... start) 10. It saves the fossil fuel (coal, diesel, oil etc.) which are limited available.

State the importance of electrical power in day to day life.

Description : State the importance of electrical power in day to day life. 

Last Answer : Importance of electrical power in day to day life: 1. Electrical energy is the basic necessity for domestic (residency), commercial, industrial, agriculture, consumers , transport (Electric ... agriculture products. iv) Running motors, furnaces of various kinds in industry, running locomotives 

List any two types of fuels used in electrical power generation plants.

Description : List any two types of fuels used in electrical power generation plants.

Last Answer : Types of fuels used in electrical power generation plants:  1) Solid fuels: Coal, Biomass: Wood, Nuclear fuel: Uranium, Plutonium  2) Liquid fuels: Diesel, Petrol  3) Gaseous Fuels: Natural gas, Producer ... 2) Wood 3) Uranium 4) Plutonium 5) Diesel 6) Petrol 7) Natural gas 8) Producer gas

_______ electric power is the most common method used by electrical grids to transfer power.

Description : _______ electric power is the most common method used by electrical grids to transfer power.  (A) One-phase (B) Two-phase (C) Three-phase (D) None of the above

Last Answer : Three-phase electric power is the most common method used by electrical grids to transfer power. 

When an alternating current passes through an ohmic resistance the electrical power converted into heat is?

Description : When an alternating current passes through an ohmic resistance the electrical power converted into heat is?

Last Answer : When an alternating current passes through an ohmic resistance the electrical power converted into heat is true power.

Power factor of an electrical circuit is equal to?

Description : Power factor of an electrical circuit is equal to?

Last Answer : Power factor of an electrical circuit is equal to R/Z, cosine of phase angle difference between current and voltage, kW/kVA.

Outline the process of accounting.

Description : Outline the process of accounting.

Last Answer : Process of accounting An accounting system tracks and controls the income and expenses of a business. Accounting systems can be as simple as a pen and notepad, and can be as complex ... find themselves required to create reports for external stakeholders, such as lenders and private investors. 

Explain law of demand and law of supply.

Description : Explain law of demand and law of supply.

Last Answer : The Law of Demand The law of demand states that, if all other factors remain equal, the higher the price of a good, the less people will demand that good. In other words, the higher the price, the lower ... ). At point B, the quantity supplied will be Q2 and the price will be P2, and so on.

Describe the concept of fixed cost, variable cost and total cost.

Description : Describe the concept of fixed cost, variable cost and total cost.

Last Answer : Total cost  Total cost refers to total expense incurred in reaching a particular level of output, if such total cost is divided by quantity produced average or unit cost is obtained. The ... . Direct material, direct labour, direct expenses, variable overheads are some examples of variable cost.

List the advantages and disadvantages of hydropower.

Description : List the advantages and disadvantages of hydropower. 

Last Answer : Hydropower plant Advantages Renewable - Hydroelectric energy is renewable. This means that we cannot use up. However, there's only a limited number of suitable reservoirs where hydroelectric power ... MW under construction. Only one of these projects was started in the last two years. 

Explain any four important properties of petroleum fuel.

Description : Explain any four important properties of petroleum fuel.

Last Answer : Properties of petroleum fuel The flash point of a volatile fuel is the lowest temperature at which it can vaporize to form an ignitable mixture in air. The flash point is an important concept in ... of combustion contain the water vapor and that the heat in the water vapor is not recovered.