Household Circuits and Safety

1		Compare how a fuse and a circuit breaker function to protect people and property.
2		How does the use of three-pronged plugs help protect people from electrical shock?
3		How does a GFI device help protect people from electrical shock?
4		How do polarized plugs help protect people from electrical shock?

Solar Cells

5		What unique property of silicon makes its use in a solar cell possible?
6		How does doping change the properties of silicon?
7		Describe how a layer of n-silicon against a layer of p-silicon in a solar cell can create an electric current.