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Energy and Power
A 3.3 kΩ resistor dissipates 0.25 W. The current is
8.7 mA
87 mA
8.7 µA
8.7 A
Correct Answer:
8.7 mA
Explanation:
W = I
2
R
I = square root(W/R)
= square root( 0.25/(3.3x1000) )
= 0.0087038828
=
8.7 mA
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