Electrike is not avaliable to catch in White, and sadly, it's not available to trade from Pokemon games on a GBA. But there are good electric types to replace it with. Like:
- Zekrom
- Zebstrika
- Galvantula
- Eelektross
It can be traded from Diamond, Pearl and Platinum though. Scroll down to the bottom of the page below to see locations for Electrike:
http://pokemondb.net/pokedex/electrike
