Q1. For 'Load at Unity Power Factor' example discussed in the lecture (see figure below), find power to load, percentage voltage regulation, power losses and percent efficiency if the power factor is 0.78 lagging. Compare your results to example discussed in the class.

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a …