- 08 1 What Was The Independent Variable In The Investigation Tick One Box Distance Between The Lamp And The Solar C 1 (61.18 KiB) Viewed 11 times
- 08 1 What Was The Independent Variable In The Investigation Tick One Box Distance Between The Lamp And The Solar C 2 (106.88 KiB) Viewed 11 times
08 1 What was the independent variable in the investigation? Tick (✓) one box. Distance between the lamp and the solar cell Output potential difference of the solar cell Output power of the lamp Surface area of the solar cell Describe how the student could make the measurements in the investigation. Measurement of surface area Measurement of output potential difference 08.2 [1 mark] [4 marks]
08 3 Figure 11 shows the results. 5.0- 4.5 4.0- 3.5- 3.0- 2.5- 2.0- 1.5- 08 Output potential difference in volts Figure 11 20 30 50 70 40 60 Surface area of solar cell in cm² Determine the surface area of a solar cell needed to provide an output potential difference of 4.0 V. [1 mark] Surface area = cm² A solar cell can be used to power a small fan. The student connected the largest solar cell to the fan. Figure 12 shows the arrangement. Figure 12 Fan Solar cell Lamp 4 Give one advantage of using the gest solar cell to power the fan. [1 mark]