Gifford, Clive. How the Future Began: Machines. Kingfisher.
Hakim, Joy. The Story of Science: Newton at the Center. Smithsonian Books, 2005. (See especially Chapters 32 and 33).
Hartman, Eve. Magnetism and Electromagnets. Raintree, 2009.
Kakalios, James. The Physics of Superheroes. Avery, 2006.
__________. The Physics of Superheroes: More Heroes! More Villains! More Science! Avery, 2009.
Macaulay, David. The Way Things Work Now. HMH Books for Young Readers, 2016.
Parker, Steve. Eyewitness: Electricity. DK, 2013.
__________. Fully Charged: Electricity (Everyday Science). Heinemann-Raintree, 2005.
Somervill, Barbara. Electricity and Electrical Circuits. Raintree, 2009.
Woodford, Chris and Steve Parker. Science: A Visual Encyclopedia (Smithsonian). DK, 2014.
(You may also want to check other encyclopedias, such as DK’s Science: The Definitive Visual Guide.)