The energy radiated by Sun on a bright Sunny day is approximately: 1 kW / m²
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.
Description : State the Principle of energy conservation.
Last Answer : Principle of energy conservation: The law of conservation of energy states that the total energy of an isolated system remains constant-it is said to be conserved over time. Energy can neither be ... due to burning of fuels, greenhouse gases and avoid harmful effects on all livings on earth.
Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)
Last Answer : Buy from amazon: https://amzn.to/2SUTSdv Buy: http://bit.ly/2ZqlAkS
Description : Energy stored in electrostatic field of capacitance formula
Last Answer : Energy stored in electrostatic field of capacitance formula
Description : Energy stored in capacitor examples
Last Answer : Energy stored in capacitor examples
Description : Problems on electrical power and energy
Last 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 ... : https://youtu.be/iYqGIwA919A Problem on electrical power and energy : https://youtu.be/iWnWQz_mzHk
Description : Problem on electrical power and energy 2
Last Answer : Problem on electrical power and energy 2
Description : Problem on electrical power and energy 1
Last Answer : Problem on electrical power and energy 1
Description : Problem on electrical power and energy 7
Last Answer : Problem on electrical power and energy 7
Description : Problem on electrical power and energy 6
Last Answer : Problem on electrical power and energy 6
Description : Problem on electrical power and energy 5
Last Answer : Problem on electrical power and energy 5
Description : Write how energy can be stored or generated in each of following : i) solar cell ii) geothermal energy iii) hydrogen energy in biomass.
Last Answer : i) Solar cell : Energy can be stored: 1. Storage Battery is used to store electricity. OR Energy can be generated 1. Directly Conversion: a) By use of P.V Cell ( ... fuels in engines:- 3. The biomass is subjected to fermentation process to obtain a gaseous fuel called biomass
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.
Description : List any four sources of energy.
Last Answer : List of sources of energy:- 1. Hydro energy (P.E. of water) 2. Nuclear energy (Heat is produced by fission processes of U235) 3. Fossil fuels: i) Thermal energy (by combustion of coal) ... -65 % in volume) and carbon dioxide 7. Fuel Cells (hydrogen) b) Name any two thermal power
Description : Draw the block diagram of basic wind energy conversion system and write function of each block.
Last Answer : Block diagram of basic wind energy conversion system: OR Components of wind power plant and their functions: 1) Rotor /Blade/Aero-turbine: Blade extracts significant power from the ... stronger and smoother. Towers are supports to raise the main part of the turbine up in the air.
Description : State any four advantages of wind energy.
Last Answer : Advantages of wind energy system: 1. Wind input (energy) is freely available 2. Wind energy is inexhaustible 3. There is no air pollution 4. No fuel transportation cost. 5. No space is required to store ... cost per unit is less and is goes on decreasing day by day. 15. Maintenance cost is less.
Description : Explain with schematic diagram direct distribution of solar energy.
Last Answer : Explain with schematic diagram direct distribution of solar energy: Solar energy reaching earth's surface consists of two components: i) Direct solar energy, ii) Diffused solar energy. Direct solar energy ... radiation. It is very intense radiation and it can produce sun burns and shadows.
Description : Compare conventional energy sources with renewable energy sources on any four points.
Last Answer : Points Conventional Energy Sources Renewable Energy Sources Availability Limited Unlimited Cost of Fuel High depending on fuel. Negligible Amount of Power generated On large scale due ... should be selected at source For example HPP, TPP, NPP SPP and WPP
Description : State any two limitations of wind energy.
Last Answer : Limitations of wind energy: 1) Wind turbine produces noise. 2) Its efficiency is less (20% to 30%) 3) There is limitation on site selection. 4) Transportation cost of wind tower and accessories is high ... No firm power. 7) Power generation is not in phase with the demand. 8) Generation is costly.
Description : What is mass energy equivalence? Give one example. Define mass defect and binding energy.
Last Answer : Mass energy equivalence:- The physical principle that a measured quantity of energy is equivalent to a measured quantity of mass. The equivalence is expressed by Einstein's equation E = mc ... of energy that must be supplied to a nucleus to completely separate its nuclear articles (nucleons)
Description : What is renewable source of energy? State two examples for the same.
Last Answer : Renewable (Primary) Energy sources: It is defined as the sources that can be used again and again for the generation of electrical energy are called renewable. Following are the some list ... ) and carbon dioxide 6. Geothermal Energy Geothermal Electricity Production 7. Fuel Cells
Description : Draw a block diagram of electronic energy meter. Write function of each block.
Last Answer : Electronic Energymeter Functions of components/blocks: - CT reduces current to reasonable value for current scaling network. - Voltage & current scaling networks reduce proportionally the voltage ... ADC converts the square wave frequency analog output to display the energy in watthour.
Description : State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet
Last Answer : i) Series magnet: produce flux proportional to current (load current) of circuit and interact in the aluminum disc with flux produced by voltage magnet for torque production. Its shape is like letter U. ii) ... : brakes the motion of the aluminum disc or slows it down. Its shape is like letter C.
Description : State the meaning of creeping error in 1 phase energy meter.
Last Answer : Creeping error: It is defined as the slow and continuous rotation of the disc of the energy-meter when only pressure coil is energized with no current in the current coil (load current = 0). ... magnet on this iron wire is sufficient to prevent continues rotation of the disc on no load condition.
Description : Draw a neat sketch of 1-ph induction type energy meter and write operating principle of it.
Last Answer : Operating Principal:- The disc is placed between the two-flux due to pressure coil and flux due to current coil, which will set up torque on the disc which is proportional to power causing the ... is proportional to voltage, the second carries a current coil so its flux is proportional to current.
Description : Draw and describe working of electronic energy meter.
Last Answer : working of electronic energy meter:- 1. CT reduces current to reasonable value for current scaling network. 2. Voltage & current scaling networks reduce proportionally the voltage & ... The ADC converts the square wave frequency analog output to display the energy in watthour.
Description : Define energy. Write unit of it.
Last Answer : Energy :- Electrical energy is defined as the work done in moving electrical charge in electrical fields over specific time duration OR The total power delivered or consumed by consumer over specific time duration. ... the power w.r.t. time Unit :- Its Unit in watt sec., WHr., KWHr.
Description : What is meant by energy meter constant?
Last Answer : Energy Meter Constant A fixed value which is used when converting meter readings to actual energy use, especially when potential transformers and similar types of equipment are used in metering. For example, K=--------rev/Kwh
Description : With neat diagram explain calibration of energy meter by direct loading method.
Last Answer : Calibration of Energy Meter by Direct Loading Method: There are three methods for testing/calibration: 1. Long period dial test 2. Using rotary sub- standard meter 3. Using precision grade instruments All ... of substandard meter in kWh Then % error = [(D - DS)/DS] x 100
Description : Why energy meter is integrating type measuring instrument?
Last Answer : Energy Meter is Integrating Type Measuring Instrument: Energy meter is used for measurement of energy, which is obtained by integration (summation) of power supplied over the particular time duration, hence it the integrating type measuring instrument.
Description : Write any two advantages of digital energy meter.
Last Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.
Description : List any four errors in induction type energy meter. Give method of compensation for each.
Last Answer : Errors in Induction Type Energy Meter with their Compensation: 1) Error due to friction: This error can be compensated by the additional shading band provided on the shunt electromagnet. 2) Phase ... error: This error can be compensated by providing a flux diverter' to the current magnet.
Description : Derive an expression for energy stored in a magnetic field .
Last Answer : Expression for energy stored in a magnetic field: The energy is stored in magnetic field when current increases and return back when the current decreases. At instant t' seconds after closer of switch ... energy absorbed by the magnetic field when current increases from 0 to I amperes
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.
Description : The transfer of energy for reaction turbines is based on _______ A) Newton’s first law B) Newton’s second law C) Newton’s third law D) All the above
Last Answer : The transfer of energy for reaction turbines is based on Newton’s third law
Description : What is the stored energy when 200 V is applied across a 7 μF capacitor? A) 1400 Joules B) 0.7 Joules C) 0.14 Joules D) None of these
Last Answer : What is the stored energy when 200 V is applied across a 7 μF capacitor? A) 1400 Joules B) 0.7 Joules C) 0.14 Joules D) None of these
Description : The double energy transient occur in the?
Last Answer : The double energy transient occur in the R-L-C circuit.
Description : What supplies energy to move through a circuit?
Last Answer : A potentiall diffrence provides sunction pressure.
Description : what is the source of energy for satellite ?
Last Answer : The source of energy for the satellites are its solar panels which generate power by themselves. But, to reach the orbit , it uses the fuel to push the rocket . It needs fuel to power the ... solar panels , hence solar power is produced which is ud=sed to power the internal use of satellite.
Description : If I drink two energy drinks a day (generally sugar-free redbull), what is the absolute latest I could drink the second one before it would start affecting my sleep?
Last Answer : i would just stay away from that junk really
Description : In a 100 TPD Sponge Iron plant, the sponge iron is fed to the Induction melting furnace, producing molten steel at 88% yield. The Energy consumption details are as follows: Coal Consumption : 130 ... molten steel (product). 3. Total Energy Consumption of Plant in Tons of Oil Equivalent (TOE )
Last Answer : a) Specific Energy Consumption of Induction Melting Furnace Molten Steel Production from the Induction melting furnace per day = 100 x 88/100 = 88 TPD Total Energy Consumption of the Plant = 82400 kWh ... mark c) Total Energy consumption of Plant in ToE = 655864000/107 = 65.586 ToE
Description : What is Time of Day tariff? How it help in energy conservation?
Last Answer : Time-off-day tariff:- In addition to basic tariff (Maximum Demand Tariff / KVA Maximum Demand Tariff / Load factor tariff /also the tariff in which P.F. of industrial consumer is taken ... the rated load for longer times of the day their overall efficiency gets higher helping to conserve energy.
Description : Which of the following reaction is the main cause of energy radiated from Sun? (1) Nuclear fission (2) Nuclear fusion (3) Chemical reaction (4) Diffusion reaction
Last Answer : (2) Nuclear fusion Explanation: The Sun is a main-sequence star, and thus generates its energy bynuclear fusion of hydrogen nuclei into helium. In its core, the Sunfuses 620 million metric tons of hydrogen each second.
Description : What process produces most of the energy that is radiated by the Sun? w) gravitational contraction x) chemical combustion y) nuclear fusion z) nuclear fission
Last Answer : ANSWER: Y -- NUCLEAR FUSION
Description : If a house has solar panels and all energy is free, then is it ok to leave the lights on?
Last Answer : I think it would be wise to not waste any energy whether it's free or paid. Every electronic item has a limited working lifespan, if you were to run it all the time, it's gonna break very soon. Aside ... then the short answer is Yes . You can waste as much as you want since you own this energy.
Description : Is the energy crisis real?
Last Answer : Who is calling it a crisis? We have plenty of energy here in the US. OPEC has been aggrresive at limiting supply and raising prices.
Description : What branch of science does research into tachyon energy computing ?
Last Answer : Right after we reach “the speed of light”. We are close, to speed of light, with the Large Hadron Collider.
Description : Is it possible to convert infrared energy into electricity?
Last Answer : Silicon solar cells can convert the shorter wavelengths of IR to electricity: https://www.solarquotes.com.au/blog/uv-solar-panels/ You can also concentrate solar IR and use the ... .com/innovationtoronto.com/wp-content/uploads/2015/12/Solar-Thermal-Power-Plant_forcetoknow.com_.jpg?resize=627%2C221
Description : Which takes less energy?
Last Answer : Send this Q to LuckyGuy!
Description : Have they successfully converted energy to mass?
Last Answer : They?