I'm not sure if this is what you're looking for, but electromagnetic fields and their potential effects on cells and whole animals have been studied for years. A PubMed search for "electromagnetic field" brings up about 8000 articles.
If you can refine your question to the strength of the electric field put across it, we may be able to better address the issue. Very small changes in electric potential are used regularly by cells to signal events such as nerve terminal depolarization. Such events can be re-created using electrophysiological equipment, then the processes can be studied under controlled conditions. Extreme electrical fields will do what you would expect and lead to damage and loss of viability.