Ah, another fine math problem from the Amateur Extra exam (don’t you just love these?) [E5D18] How many watts are consumed in a circuit having a power factor of 0.71…

The Amateur Extra class question of the week comes from sub-element 5 (electrical principles) section C (polar coordinates) [E5C06] In polar coordinates, what is the impedance of a network consisting…

Extra question of the day is from sub-element 6 (circuit components) section A (n-type semiconductors) [E6A16] What are the majority charge carriers in N-type semiconductor material? A. Holes B. Free…

This week’s Amateur Extra question is from sub-element 5 (Electrical Principles) group A (characteristics of resonant circuits) [E5A06] What is the magnitude of the circulating current within the components of…