Photocell and solar cell difference?

2 Answers

Answer :

Photo cell responds to change in light.. Eg photo diode and infra led... A photo cell is a light dependent resistor or switch.. A solar cell is made of voltaic cell which produces electrons flow when light radiation fall on it

Answer :

A photo cell is a light dependent resistor which decreases it resistance high intensity of light and is used to automatically control lights etc where as a solar cell solar or light energy into electrical energy.

Related questions

Description : Explain the characteristics of solar cell.  

Last Answer : Characteristics of solar cell : Explanation :- Solar cells produce direct current ( DC ) electricity and current times voltage equals power, so we can create solar cell I-V curves representing ... system so that it can operate as close to its optimal peak power point (MPP) as possible.

Description : State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Last Answer : Principle of solar cell:-  Working:- Solar cell operates on principle of Photo-voltaic effect Solar cell works in following steps:  The solar cell is composed of a P-type ... of Voltage & Current rating it is necessity of connecting series and parallel connection of solar cells.

Description : Why solar system is preferred now a days ? Justify your answer. 

Last Answer : Since availability of fossil fuels like coal are limited in future so there is more importance of solar power in the energy deficient because of following advantages of solar power Fuel is ... .  10. solar system technology are ideally suited to distributed applications ( Decentralized system)

Description : State the types of solar collector and explain any one. 

Last Answer : Types of solar collector:  1. Flat Plate type collectors :- a) Flat plate collectors (FPC) b). Evacuated Tubular collector (ETC)  2. Concentrating type collectors (focusing ... to north direction because there is more solar energy in this direction than the East-West arrangement.  

Description : Classify the solar collectors and compare them. 

Last Answer : Classification of solar collectors :-  1. There are two main types of Flat Plate type collectors :- a) Flat plate collectors (FPC) b). Evacuated Tubular collector (ETC)  2. Concentrating ... directly from water Can be used to generate electricity with the help of steam turbine

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 : Define : i) Diffuse radiation ii) Beam radiation ii) Insolation iv) Solar constant

Last Answer : i) Diffuse radiation: It is the solar radiation which is scattered by the particles in earth's atmosphere and this radiation does not have any unique direction.  ii) Beam radiation: Solar radiation ... from the sun.  OR  It is the average radiation received outside the earth's atmosphere

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 : Define the term solar constant.

Last Answer : Solar energy arrived atmosphere at a constant rate of 1350W/M²

Description : A solar pond is a combination of :  (A) Solar energy storage and heat collection  (B) Solar energy collection and heat storage  (C) Solar energy collection and energy storage  (D) All the above

Last Answer : A solar pond is a combination of : Solar energy collection and heat storage

Last Answer : Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals ... e4(-) and g4 c2e1 and c4e3 pins are AC output pins. its name is igbt inverter.

Description : Explain with neat diagram the working of photo-voltaic cell. 

Last Answer : Diagram the working of photo-voltaic cell: Working:- Solar cell operates on principle of Photo-voltaic effect    Solar cell works in following steps: The solar cell is composed ... . When you connect loads such as a light bulb, electric current flows between the two electrodes.  

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 : Do cell phones use AC or DC current?

Last Answer : DC of course.

Description : How to Make a Solar Oven

Last Answer : Conventional ovens, although reliable, are expensive and contribute heavily to your electric bill. Gas ranges, on the other hand, are slightly more convenient, although the price of gas has increased through the ... , with a solar oven, you're just a ray of sunshine away from another luscious meal.

Description : How does Solar Energy Work?

Last Answer : How does Solar Energy Work? The world is facing an energy crisis. Energy resources such as oil and coal not only continue to cost more, but when burned contribute to polluting the ... energy will be a viable economic alternative to fossil fuels for producing energy for homes and businesses.

Description : How to Build a Solar Oven

Last Answer : How to Build a Solar Oven Introduction What often comes to mind when you think of solar power? You may think of massive arrays of solar panels that are used to harness the energy from the sun. You could ... can use a stick, a rock or some other object to prop open the lid to the proper position.

Description : How to Build a Solar Furnace

Last Answer : How to Build a Solar Furnace How to Build a Solar Furnace Solar furnaces are actually made up of something known as silicon, the same substance that makes silica or sand. The funny part is that ... not rust like iron. So the entire structure of the furnace is built to last for several years.

Description : How Do Solar Yard Lights Work?

Last Answer : How Do Solar Yard Lights Work? Solar yard lights have become extremely popular over the last several years as more and more people switch from traditional yard lighting to solar. While traditional yard ... local and state governments who now use this technology for street and park lighting as well.

Description : SOLAR SYSTEM FACTS

Last Answer : There are tons of asteroids in our solar system. One of them, Asteroid 243 Ida, even has it's own moon. One of the moons of Saturn, called Mimas, is heavily cratered. This creates an odd appearance ... our solar system, the sun still accounts for 99.8 percent of the total mass of our solar system.

Description : With a neat diagram explain solar photovoltaic power plant. 

Last Answer : Diagram of solar photovoltaic power plant :  Explanation:  Solar power plant consists of following components:  1. Photovoltaic cell panel: Its function is to convert sunrays directly into DC ... .  5. Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V

Last Answer : Diagram explain solar power tower : All concentrating solar thermal power (STP) basic elements: Concentrator Receiver Transport-storage (a portion of the thermal energy ... with alternator which converts mechanical power to electrical energy Exhaust steam is condensate in condenser

Last Answer : Because of following advantages concentrating type collector are used in solar power plant: -  1. Temperature: Temperature obtained is high because absorber area is less and collector/reflector area ... results: As tracking system is used better results are obtain than flat type collector.

Description : Reflector mirrors employed for exploiting solar energy are called the  (1) Mantle (2) Heliostats (3) Diffusers (4) Ponds

Last Answer : Reflector mirrors employed for exploiting solar energy are called the Heliostats

Description : What are the advantages and disadvantages of solar energy?

Last Answer : Free of costRenewable energyInextable solar energyLow energy densityHigh capital costMaintenance cost highDepends on weatherNeed to direction tracking

Description : What are the disadvantages of using solar energy?

Last Answer : High installation costEnergy density is depend on weatherSo it is low Not suitable in all areasMaintenance cost high

Description : _________ stores excess of water and waste products in a cell. a) ribosome b)vacuole c) golgi complex d)plastid

Last Answer : b)vacuole

Description : ________ helps in transport of material s in a cell. a) endoplasmic reticulum b)ribosome c)vacuole d)plastid

Last Answer : a) endoplasmic reticulum

Description : The ________ provides fixed shape and rigidity to plant cell. a) cell wall b)cell membrane c)plasma lemma d)lysosome

Last Answer : a) cell wall

Description : The largest cell is ______ a) PPLO b) Mycoplasma c)ostrich egg d)liver cell

Last Answer : c)ostrich egg

Description : The most important organelle of a eukaryotic cell is also its defining feature, the nucleus. Why is the nucleus so critical to eukaryotes?

Last Answer : It houses DNA. Also, the nucleus is the site where DNA begins to be interpreted through transcription.

Description : Name the four molecular components found inside a cell.

Last Answer : Proteins, Carbohydrates, Lipids, and Nucleic Acids.

Description : How To Make A Brain Cell Salad

Last Answer : Preparation Method ----------- 1 pk (6oz) blueberry jello mix 1 ct (16oz) small curd cottage Cheese 1 cn (16 1/2oz) can blueberries In syrup 3/4 c Frozen blueberries, thawed Blue food ... From the Book: Gross Grub by Cheryl Porter Random House ISBN 0-679-86693-0 Shared by Carolyn Shaw 10-95

Last Answer : E.m.f. of a Weston cell is accurately measured by electrostatic voltmeter.

Description : Describe the difference between direct and alternating current.

Last Answer : Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction. 

Description : Describe the difference between an open circuit and a short circuit.

Last Answer : Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit

Description : Write difference between absolute & secondary instrument.

Last Answer : Absolute Instrument Secondary Instrument 1. These give magnitude of quantity in terms physical constants of instruments 1. These give reading directly of the quantity at the time of ... Raleigh current balance. 6. Examples - ammeter, voltmeter, amperehour meter, wattmeter etc.

Description : When the phase difference between two sinusoidal quantities is 90° they are said to be ______ A) Phase right angle B) Phase quadrature C) Phase sinuright D) None of these

Last Answer : When the phase difference between two sinusoidal quantities is 90° they are said to be Phase quadrature

Description : The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that?

Last Answer : The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that both waves must have same frequency.

Description : The power consumed in a circuit element will be least when the phase difference between the current and voltage is?

Last Answer : The power consumed in a circuit element will be least when the phase difference between the current and voltage is 90°.

Description : What is the difference between eddy current and hysteresis loss?

Last Answer : Loss occurred by magnetising and demagnetising process is called histerisis loss and the current flowed due to the magnetic field produced by the electric field applied is called eddy current losses

Description : What is the difference between an anode and a cathode?

Last Answer : The anode is positively charged electrode and the cathode is negatively charged electrode.

Description : What is the difference between a coil and an inductor?

Last Answer : Inductor is covering with insulating material is called coil.so they differentiate between coil and inductor.

Description : what is the difference between capacitor and battery ?

Last Answer : A capacitor stores power but in very small quantitys and work in D/C and A/C circuits and it needs a power source from wich it gets the power it stores and a battery also stores power but in much larger quantitys measured in Amp/Hours

Description : The thread like network in the nucleus is ________. a) chromatin b)chromosome c)cilia d)flagella

Last Answer : a) chromatin

Description : The rough endoplasmic reticulum is rough due to presence of _______. a) ribosome b)mitochondria c)granules d)grains

Last Answer : a) ribosome

Description : The colourless plastid which stores starch and protein is ________. a) chloroplast b)leucoplast c)chromoplast d)none

Last Answer : b)leucoplast

Description : The basic living substance is ___________. a) protoplasm b)endoplasmic reticulum c)cytoplasm d)mitochondria

Last Answer : a) protoplasm

Description : What makes up 70% of the intracellular space?

Last Answer : Water

Description : Distinguish between AC and DC.

Last Answer : Particulars Direct Current Alternating Current Definition It is the current whose magnitude and direction do not change with respect to time. It is the current whose ... system, electroplating, Battery charging, Traction. AC machines, Domestic and industrial supply.