disc_1 - E CE 210)1 ECE 2100 Section 1(week beginning Power...

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ECE 210 Section 1 (week beginning 1/7/2011) 1/ Power, Energy, and Ohm's Law (No Prelab) 1. The rating on a 12 V car battery is 100 ampere hours (for example, it will provide I amp for 100 hours or 100 amps for I hour). Assuming the voltage remains at 12 V during a discharge of the battery, how much energy is stored in the battery? To what altitude could you lift a 1000 kg automobile if this amount of energy were available for this purpose? )00 A ')( J 2 V )( '36005 100 0 ~ l1. % )C d ~ - If. 3 2 l' , 0 l, I . , 432 Wl 2. In the figure shown, let Is = 8 A, R = 3 n, and v.~ = 16 V. a R - I c d + The sources are ideal and hence maintain their respective values. Find the total power supplied or received by the current source, the power delivered to R, and the power supplied or received by the battery. Find the voltage Va - Vb = Vllb. You may use the fact that I = ,~ for a series circuit (by Kirchhoffs Current Law). :c \'\~W!. ~u.,..,. ""I~~ ~ low ?~.\.wt,o.l (v) ~" 0, veCelve.v 01 Q.\,u\vit.L' el'l~~1 ~N~ \v~""-'\ h~ \.0 w, \.. ri)~Nh~ tv- c.. sOv. .... r..{, ?
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