Find I when:

ÚÄ
³P
I = ³Ä
ûR
a. P = 20 W, R = 100 ê
b. P = 400 W, R = 4 ê
c. P = 400 mW, R = 40 Kê


a. 447 mA
b. 10 A
c. 3.16 mA

Mathematics

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