Question

Units Power has units of energy per time. Show that voltage [VI multiplied by current [A] gives power in Watts. Do this by breaking voltage, current, and power into more fundamental units Power and Charge 5 a) If for device D m= 5M and u-10 [mA], what is the power absorbed by D? TD o b) If for device D' 2absorbed by D'? IV] and i 10 [mA], what is the power VD' a) Is device A labeled in the passive or active sign convention? b) Is device C labeled in the passive or active sign convention? c) Ifyc="3(V] and 20(nA], what is the sign convention for device C? ic lle - d) If ia--100[mA], what is the sign convention for device A?

Answer 1

lo bolb voltage and CuYrmFs have sa me pol,hiheyPowe r。{positive and Powr de livered Ie element , 2- bolh voltage and Gavtenve dilenent polie,power s nesntive power s abDYbed b the elemen IA c Vc → achive element e) device c is pa ssive becauje direchon c 7assive element.

c) v Then device c become achive elemen Power delivered 3x20m-D.06W Then de vi ceme passive eemn