LectureNote13

LectureNote13 - W48" fl=0) Aarer nowfid/ +0...

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Unformatted text preview: W48" fl=0) Aarer nowfid/ +0 'flre Cw; W, 74412 awe Wfifl/ . 1— /24X v4a + #645 M‘ m‘ 6 (10 pts) 9. The region for z < 0 is free space and for z > 0 a dielectric of relative dielectric constant 2. There is a sheet of charge on the xy plane of 1%. If the electric field for z < 0 is, m = max + Way 4 aZ K, then the electric field for z > O is, . x . x +—_.__._._._— 8.854xlO‘12 m E 2 1 4 V a) E :———_12 21K + w—_n a +————————_12 az— 8.854x10 8.854x10 y 8.854x10 m £0 7’ X 9371 X/Or/L 2 1 5 V b) E=———-_12 ax + —————————_12 a +————_12 az— 8.854x10 8.854x10 y 8.854x10 m c)E=—————a ay 3 2 +__l__ +_____3_ Z 8.854x10‘12 ‘ 8.854x10‘12 8.854x10‘12 ‘m 3 2 5 V d) E:——-—_12 21K + ———_12 a +—_12 az— 8.854x10 8.854x10 y 8.854x10 m 1 0 3 V e) E=———_12 :1x + ———_12 a +—_12 az— 8.854x10 8.854x10 y 8.854x10 m \A e of the above aw); Dz 2 = f We” 2 of +782 wot/2 fat/fa; (10 pts) 11. How much energy is stored in a collection of three +1C charges that are all in a line and with 1 142;, / in between them as shown? 1 m 1 m o<—————————>o<—-———————>o ...
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LectureNote13 - W48&amp;quot; fl=0) Aarer nowfid/ +0...

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