An 18 V source has an internal resistance of 70 Ω. If a load resistance of 33 Ω is connected to the voltage source, the load power, PL, is
A. 0 W
B. 1 W
C. 175 mW
D. 18 mW
Answer: Option B
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Related Questions on Circuit Theorems and Conversions
What is the Thevenin equivalent (VTH and RTH) for the circuit given?
A. 6.4 V, 422 Ω
B. 6.4 V, 560 Ω
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A. 676 mA
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maximum power transfer theorem
RT=RI+RL
RT=70+33=103 ohm
IT=Vs/RT
IT=18/103=0.174A
PL=I^2*RL
PL=1.00W