T13 Class Problem 2 A 40V battery is connected to the capacitor circuit as shown. a) Find the equivalent capacitance of the circuit. b) Find the charge across the 10µF capacitor. c) Find the voltage across the 6µF capacitors. [a) 1.82µF b) 72.8µC c) 7.30V ] 4µF 6µF 4µF 4µF 6µF 10μF 40 V

Explain this diagram

14. For a power plant with two units, the weekly load is 1200 MW. The coal consumption (tons/hour) for each unit is Q₁ 16+.3P₁ tons/hours Q2-25+.4P₂ tons/h The total coal available to the plant is limited to 90,000 tons/week. If the linear cost curves are given as C₁=495+11P₁ $/hour, C₂-760+10P₂ $/hour And generation by each unit is limited to 150 ≤ P, ≤ 600MW Determine the values of P₁ and P₂ for minimizing the cost of power generation. 15. Use LP to determine economic dispatch if C₁ = 5+ 3P₁, C₂ = 7+6P2, C3 = 8 + 9P3 50 P₁ < 150 MW and PD=210 MW If the line flow P12= .3P₁ + .4P₂ + .1P3, also determine P₁, P₂ and P3 so that P₁2 is limited to 70 MW. 1 4 400 ≤ P₂ ≤1000MW H 2 3

21. A piece of wire that is one mil in diameter and one foot long is one mil-foot.   Select one: TRUE FALSE