Contribute correction: Teach yourself Electricity

  _  __   _    _    _    _      ___    
 | |/ // | || | || | || | ||   / _ \\  
 | ' //  | || | || | || | ||  / //\ \\ 
 | . \\  | \\_/ || | \\_/ || |  ___  ||
 |_|\_\\  \____//   \____//  |_||  |_||
 `-` --`   `---`     `---`   `-`   `-`