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The switch S has been closed for long time and the electric circuit shown caries a steady current. Let C_1 = 3.0muF, C_2 = 6.0 muF, R_1 = 4.0 kOmega, and R_1 = 7.0 k Omega The power dissipated in R_2 is 2.8 W. |
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Answer» The power dissipated to the resistor `R_1 is 1.6W.` `i = 2 xx 10^(-2) A ` `P_(R1) = i^2R_1 = (2xx10^(-2))^2 xx 4 xx 10^(3) = 1.6W` `Q_(C1) = V_(R1) xx C_1 = 80 xx 3 xx 10^(-6) = 240 muC` `Q_(C2)= V_(R2) xx C_2 = 140 xx 6 xx 10^(-6) = 840 muC` `Q_(C1) = E_(C1) = 220 xx 3 xx 10^(-6) = 660 muC` 
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