A certain series circuit consists of a $$\frac{1}{8}$$ W resistor, a $$\frac{1}{4}$$ W resistor and a $$\frac{1}{2}$$ W resistor. The total resistance is 1200 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is
A. 27 mA
B. 2.7 mA
C. 19 mA
D. 190 mA
Answer: Option A
This Question Belongs to Electrical Engineering >> Series Circuits
PT = P1 + P2 + P3
PT = (I^2)R
I = sqrt (PT/R)