Question

In the circuit below R1 = R2. What is the value for the resistors if the circuit dissipates 65.4 mW?

Answer 1

circuit diagram?

Answer 2

yes

Answer 3

R1=R2, so effective resistance(R) in this parallel circuit=R/2
V=18V
Power=65.4 mW=0.0654W
\[power, P=\frac{V^2}{R}\]
\[R=\frac{V^{2}}{P}\]
\[R=\frac{18*18}{0.0654}=4954.13\]
\[R1=R2=2R=4954.13*2=9908.26 \Omega \]

Answer 4

http://library.thinkquest.org/10796/ch14/ch14.htm