Book excerpt: Amp up your understanding of electricity and magnetism with DOZENS OF DO-IT-YOURSELF EXPERIMENTS Electricity Experiments You Can Do At Home is a hands-on guide that helps you master the principles of electrical currents and magnetism. Each of the book's three sections--direct current, alternating current, and magnetism--begins with step-by-step instructions for setting up your lab for the experiments that follow. Using inexpensive, easy-to-find parts, the experiments progress from basic to more complex and will spark ideas and encourage inventiveness. Expect unexpected results when you experiment with: Diode-based voltage reducer Compass-based galvanometer Photovoltaic illuminometer Utility bulb saver Ripple filter Xener-diode voltage regulator AC spectrum monitor Ampere's law with wire loop AC electromagnet Handheld wind turbine And dozens more projects ELECTRICITY EXPERIMENTS YOU CAN DO AT HOME helps you to: Solve circuit problems in electricity Build practical and interesting electrical and magnetic devices Get ideas for science-fair projects Prepare for advanced courses in electricity and electronics Learn the basics of laboratory practice