What is the no-load terminal voltage of a single-phase transformer that has a voltage regulation of 4% and a secondary terminal voltage of 115.4 V at full load current?

Calculate the zero-sequence component of current if the fault current flowing from neutral to ground is 24 A.

What is the hot resistance of a lamp rated at 200 W / 250 V?

For an NPN transistor operating in the active region, the base current is 0.1 mA and the emitter current is 10.1 mA. What are the values of the common-base current gain (α) and common-emitter current gain (β), respectively?