No. Question 25. What is a pn junction? Question 23. Question 20. We offer two types of solar residential systems. 2. The operation of a photovoltaic (PV) cell requires 3… Updated FAQ of 28 August 2012. However, there are some common questions which you may like to practice as part of your own preparations. The following are some of the frequently asked questions for Viva of the Four Probe Experiment, ... Cant find all questons answers. Solar cell 2. The solar cell should be exposed to sun light before using it in the experiment. Each solar module is approximately 5 feet (1.5 meters) long and 2-1/2 feet (0.75 meters) wide. The more photons of sunlight absorbed by the solar cell, the greater the electric current. It is important to understand that a solar electric system does not need to provide all of the electricity you need to be of great value. We recommend that the installer do a system check once a year, just to make sure everything is performing, as it should. VIVA VOICE QUESTIONS: 1. A small system that displaces an average of one-quarter to one-half of your average demand reduces your electric bill. A south-facing roof area is optimal, but solar electric panels can be mounted on west- or east- facing roofs and still produce better than 90 percent of the power of a true south roof mounting. c. Recirculated after cooling in cooling towers. Photo Cell Characteristics Applied Science Department NITTTR, Sector-26, Chandigarh . A resistance in the cell circuit should be introduced so that the current does not exceed the safe operating limit. characteristics of a solar cell, and hence measure important photovoltaic parameters, such as the fill factor (E) and light conversion efficiency. The terms forward bias and reverse bias do not apply to a source. Our systems are engineered to work with most roofing materials, in most locations where direct sunlight is available, in almost every region of the United States. Many states prohibit homeowners' associations from restricting solar devices. Another type of system powers your home during daylight hours but also has a battery backup designed to provide power to your home's critical loads during an outage, day or night. How to Convert Your Internship into a Full Time Job? The basic solar cell structure. After solar cell processing, the j–V characteristics of every cell are measured, with V oc, j sc and FF determining the conversion efficiency (Eq. Question 10. Your dealer may offer a service contract for regularly scheduled checks of the system output and wiring. Lab technicians have to be highly detailed-oriented and self-disciplined in order to be able to fulfill their day-to-day responsibilities. (a) 2.0 A (b) 1.33 A (c) 1.73 A (d) 2.31 A. With battery backup, it can deliver uninterrupted power to critical loads during utility outages for days or weeks. With no moving parts and made of very inert materials, our solar modules are tough. Fig. Energy Procedia 18 ( 2012 ) 1601 – 1610 1876-6102 © 2012 Published by Elsevier Ltd. Question 2. No. Question 4. Question3: What happens when the solar energy generated is more than what we need or if it is less than what we need? Low-level laser (light) therapy (LLLT) for treatment of hair loss. Your meter spins forward when your solar energy system is not producing all of the electricity you are currently using. In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: Question 29. The working of a solar cell solely depends upon its photovoltaic effect hence a solar cell also known as photovoltaic cell.A solar cell is basically a semiconductor device. The VI characteristic of a solar cell is shown in Fig. Our solar modules convert sunlight into electric current to operate appliances, motors, pumps and other devices. 2 Solar Cell Characteristics Apparatus. To approximate the array size you need, multiply your average daily electrical demand in kilowatt-hours by 0.25. Can I Have A Solar Electric System On My House And Still Be Connected To City Power? How Can Freshers Keep Their Job Search Going? Apparatus for Characteristic Study of Solar Cell (Model No: HO-ED-SC-01) is an effective tool for evaluating the characteristics of solar cell. Rectifying device under illumination, small fluctuations in the residential system may need replacement in five to 10.! Cell, the input is connected on cables from each row of panels and flows into inverters! ) -1 ] Read more about Ideal solar cell is shown in Fig job is. Performing, as it should quadrant is: Ideal solar cell, photovoltaic! During an Interview for mounting solar panels in addition to roof tops meaning they... Called an inverter converts this DC power into AC power that can be combined to form modules common… diodes... 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