Difference between revisions of "1.6 (g)"
From MrReid.org Wiki
(New page: =Class Experiment= An experiment is proposed to find the emf and internal resistance of a solar cell. Different known resistors are used in series with the solar cell. The current and term...) |
|||
Line 1: | Line 1: | ||
− | =Class Experiment= | + | =Class Experiment 1= |
An experiment is proposed to find the emf and internal resistance of a solar cell. Different known resistors are used in series with the solar cell. The current and terminal p.d. are measured for the range of resistors. | An experiment is proposed to find the emf and internal resistance of a solar cell. Different known resistors are used in series with the solar cell. The current and terminal p.d. are measured for the range of resistors. | ||
===Resources=== | ===Resources=== |
Latest revision as of 10:41, 26 August 2008
Class Experiment 1
An experiment is proposed to find the emf and internal resistance of a solar cell. Different known resistors are used in series with the solar cell. The current and terminal p.d. are measured for the range of resistors.
Resources
Analysis
A graph of p.d. against current is plotted, from which the values of emf and r are found. This leads to the equation emf = I(R+r). An extension is to find the internal resistance from plotting the external power against the load.