UN Fisika 2016 Paket 2 Nomor 36

Perhatikan gambar rangkaian berikut!

36

Muatan yang tersimpan dalam rangkain tersebut adalah …

A.            12~\mu C A.            24~\mu C
B.              18~\mu C B.             30~\mu C
C.              20~\mu C

Penyelesaian

Kapasitor pengganti rangkaian parallel

{{C}_{P}}=3+3+3=9~\mu F

 

Kapasitor pengganti rangkaian seri

\frac{1}{{{C}_{S}}}=\frac{1}{9}+\frac{1}{9}+\frac{1}{9}=\frac{3}{9}

{{C}_{S}}=3~\mu F

 

Total muatan yang tersimpan dalam rangkaian

Q=CV=3~\mu F~.~6=18~\mu C

jawaban B

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