Term 2. Natural Sciences Grade 9 Parallel nu Term 3 2022 Project orisation ransformac e terms Instead of connecting each panel to the next, with a parallel connection, each panel is connected to a centralised wire. There is one wire for connecting the wires from all the positive terminals and one wire for the wires from the negative terminals. Corresponding circuit diagram 12V 12V 12V LIL Total voltage remains 12 V Natural Sciences Grade 9 Term 3 2022 Project 5.1. Use your knowledge on series and parallel circuits and explain why the total voltage in the previous example is given as 24 V. (2) 5.2 Some of the solar panels on the roof of the house below is sometimes partially in the shade of a tree. Three solar panels connected in parallel With panels connected in parallel, the voltage of the overall circuit stays the same as the voltage for each individual panel. In practice When installing a solar panel system, there will probably be a combination of parallel and series connections. You could for instance have 4 panels, with 2 branches of 2 panels. Each branch contains two panels connected in series. 12V 12V Corresponding circuit diagram 5.3 All commercial solar installations are done by connecting solar panels in combinations of series AND parallel connections. 5.2.1 Give TWO reasons why solar panels are almost never connected in series only. An electrical contractor is given 18 solar panels with a voltage rating of 40 volts each. He is expected to install all of the panels in such a way that the total voltage output of the installation (array) is 240 V. (2) 5.3.1 Draw a diagram which indicates how the solar panels should be connected to achieve the required voltage of 240 V by using all of the solar panels. Indicate the positive and negative poles on each of the solar panels. (Hint: A combination of series and parallel connections is needed to achieve the above requirement.) (3) [7] TOTAL MARKS: 30 12V 12V Four solar panels connected in a combination. of series and parallel 5 Total voltage is 24 V

Term 2. Natural Sciences Grade 9 Parallel nu Term 3 2022 Project orisation ransformac e terms Instead of connecting each panel to the next, with a parallel connection, each panel is connected to a centralised wire. There is one wire for connecting the wires from all the positive terminals and one wire for the wires from the negative terminals. Corresponding circuit diagram 12V 12V 12V LIL Total voltage remains 12 V Natural Sciences Grade 9 Term 3 2022 Project 5.1. Use your knowledge on series and parallel circuits and explain why the total voltage in the previous example is given as 24 V. (2) 5.2 Some of the solar panels on the roof of the house below is sometimes partially in the shade of a tree. Three solar panels connected in parallel With panels connected in parallel, the voltage of the overall circuit stays the same as the voltage for each individual panel. In practice When installing a solar panel system, there will probably be a combination of parallel and series connections. You could for instance have 4 panels, with 2 branches of 2 panels. Each branch contains two panels connected in series. 12V 12V Corresponding circuit diagram 5.3 All commercial solar installations are done by connecting solar panels in combinations of series AND parallel connections. 5.2.1 Give TWO reasons why solar panels are almost never connected in series only. An electrical contractor is given 18 solar panels with a voltage rating of 40 volts each. He is expected to install all of the panels in such a way that the total voltage output of the installation (array) is 240 V. (2) 5.3.1 Draw a diagram which indicates how the solar panels should be connected to achieve the required voltage of 240 V by using all of the solar panels. Indicate the positive and negative poles on each of the solar panels. (Hint: A combination of series and parallel connections is needed to achieve the above requirement.) (3) [7] TOTAL MARKS: 30 12V 12V Four solar panels connected in a combination. of series and parallel 5 Total voltage is 24 V

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 17P: . All of the electrical outlets in a room are connected in a single parallel circuit (Figure 7.38)....

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