1–21 Two electrical devices are connected as shown in Figure P1–21. Using the reference marks shown in the figure, find the power transferred and state whether the power is transferred from A to B or B to A when

(a) v = +12 V and i = −1:2A

(b) v = + 80 V and i = + 10mA

(c) v = −240 V and i = −12mA

(d) v = −15 V and i = −300 μA

Transcribed Image Text:

A + V B FIGURE P1-21