Salma Ahmed
English Lit. GCSE Student
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Finding the internal resistance of a solar cell
- Words:
- 1879
- Submitted:
- Thu Feb 05 2009
- Mark submitted by Author:
Have a little read: ... Finding the internal resistance of a solar cell. Aims: I intend to create an experiment which will measure the internal resistance of a solar cell. To do this I will create a circuit which will measure the current and voltage of the external circuit 'the load' which will enable me to calculate the internal resistance of the solar cell (fig.1). Internal resistance is the resistance within the cell, symbol 'r' as shown in fig.1 below. Apparatus: The circuit I will create to measure the internal resistance will comprise of; A solar cell Variable resistor (Multimeter)- Ammeter (Multimeter)- Voltmeter Fig.2 shows this setup. Extra apparatus I will use a permanent light source, this will be a lamp. I have also decided to use a tube of black card fixed around the head of the lamp that goes to the solar cell. This should stop most background light from affect any results. Safety: There are safety implications when caring out this experiment. Before
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