Page 158 - PRAKTIS BELAJAR FISIKA SMA KELAS XII

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H2?8 >6?82=:B >6=6G2D: CE2DE 7:=2>6? A6>2?2C <2? 56?82? CE>36B / $6D:<2 5:9E3E?8<2?
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#:<2 5:8E?2<2? 2BEC 3@=2< 32=:< 56?82? ?:=2: 5:36B: D682?82? / #:<2 7B6<E6?C: 2BEC !I
AE?42< C636C2B 2>A6B6 ;E82 36C2B 52H2 =:CDB:< :?5E<D2?C: <E>A2B2? 252=29 M
C6<2B2?8 H2?8 52A2D 5:32?8<:D<2? A252 7:=2>6?
252=29 M 2 >!

2 0
3 >!

3 0 4 >!

4 0
5 0 5 >!
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D6BC63ED >6?E?;E<<2? 5:28B2> 72C@B
CE2DE B2?8<2:2? 2BEC 3@=2< 32=:< #:<2 +2?8<2:2? C6B: 56?82?

7B6<E6?C: 2BEC 3@=2< 32=:< !I 52? 5:9E3E?82? 56?82? 86?6B2D@B H2?8

A6B?H2D22? H2?8 36?2B 252=29 >6>32?8<:D<2? D682?82? V 120 2 sin100 t F@=D
56?82? + 52=2> C6<@? 2H2 H2?8 5:C6B2A B2?8<2:2?

2 92>32D2??H2 > 252=29 M
2 0
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3 :?5E<D2?C:?H2 >! 3 0
4 0

4 <2A2C:D2?C:?H2 > 5 0
6 0
5 <2A2C:D2?C:?H2 >
6 :?5E<D2?C:?H2 >!

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:?5E<C: 52=2> 6<CA6B:>6? 2B252H 4> D6B5:B: 2D2C =:=:D2? $E>A2B2? D6BC63ED
,63E29 <E>A2B2? 56?82? =E2C A6?2>A2?8 4> D6B3E2D 52B: <2G2D 36B5:2>6D6B >> &652?

92>32D2? 52? ;E>=29 =:=:D2? 36B252 52=2> >28?6D:< C6B282> D682< =EBEC 56?82? A6?2>A2?8
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>652? >28?6D H2?8 C6;2;2B 56?82? CE>3E <E>A2B2? <E>A2B2? 36BE329 56?82? =2;E R - C
N
"?5E<C: >28?6D?H2 36BE329 >6?EBED A6BC2>22? !2>32D2? ;6?:C <2G2D R > -6?DE<2?
C:? + D6C=2 56?82? + 52=2> C6<@? 2 2BEC A252 <E>A2B2? 52?
N
-6?DE<2? 3 52H2 H2?8 5:92C:=<2?
2 7=E<C >28?6D C63282: 7E?8C: G2<DE ,63E29 <E>A2B2? 36B36?DE<
3 =2;E A6BE3292? 7=E<C >28?6D =:?8<2B2? 36B252 52=2> >652? B
4 % :?5E<C: A252 <E>A2B2? 52? >28?6D H2?8 2B29?H2 C6;2;2B
5 2BEC =:CDB:< A252 <E>A2B2? CE>3E <E>A2B2? C6A6BD:
E2 3E29 <E>A2B2? A6BC68: 36B86B2< 5: C6<:D2B <2G2D 82>32B 5: C2>A:?8 #:<2 >652?
36B2BEC =:CDB:< C6A6BD: 5:A6B=:92D<2? A252 82>32B >28?6D D:32 D:32 36B32=:< 2B29
36B:<ED -6?DE<2? 2B29 2BEC :?5E<C: A252 D:2A 4:?4:? 82>32B<2? 2B29 2BEC A252
;:<2 252 <E>A2B2?
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=:CDB:< -6?DE<2?
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2 :?5E<D2?C: D@B@:52 52?
3 6?6B8: H2?8 D6BC:>A2? A252 <E>A2B2?
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