The current -voltage (I-V) characteristics and electric conduction mechanisms for a bulk ceramic perovskite system of the compositions Sr (1-x) La x TiO 3 (SLT) with ( x = 0.05, 0.1 and 0.2 ) have been investigated at different temperatures between (294K-523K).At low voltage region, the conduction was found to be due to thermally generated carriers.At higher voltages, the conduction mechanism was ...