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Maximum Power

Agonche

Thread Starter

Agonche

Joined Aug 26, 2011
30
E1=120V; E2=60V; R1=R2=R3=R=30ohm

a)Find the value of Rsh, for maximum power on that resistor.
b)Find that power.



So...Rsh should equal to Rth (Thevenin)
a) Rth=R1+R1||R2||R3=30+10=40ohm
b) Eth=20V
I=0.25A
P=I^2*Rsh=2.5W

Am I right ?
 
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