Background of the study: Since the very beginning of the educational system, standardized testing has been an essential component of it. The idea of testing may be conceptualized as the act of presenting a person with a series of activities, the successful completion of which is...

BACKGROUND OF THE STUDY: It is a well known fact today that electrical power supply is not reliable. All over the world, there is a significant electrical power supply interruption. Because of these electrical power supply interruption, many electrical  instruments have...