The network shown is assembled with uncharged capacitors

X , Y

, and

Z

, with

C X = 4.0 \mu F

C _ { Y } = 3.0 \mu \mathrm { F }

and

\mathrm { C } _ { Z } = 5.0 \mu \mathrm { F }

. The switches

\mathrm { S } _ { 1 }

and

\mathrm { S } _ { 2 }

are initially open, and a potential difference

V _ { a b } = 120 \mathrm {~V}

is applied between points

a

and

b

. After the network is assembled, switch

\mathrm { S } _ { 1 }

is then closed, but switch

S _ { 2 }

is kept open. How much energy is finally stored in capacitor

X

?
$The network shown is assembled with uncharged capacitors X , Y , and Z , with C X = 4.0 \mu F , C _ { Y } = 3.0 \mu \mathrm { F } and \mathrm { C } _ { Z } = 5.0 \mu \mathrm { F } . The switches \mathrm { S } _ { 1 } and \mathrm { S } _ { 2 } are initially open, and a potential difference V _ { a b } = 120 \mathrm {~V} is applied between points a and b . After the network is assembled, switch \mathrm { S } _ { 1 } is then closed, but switch S _ { 2 } is kept open. How much energy is finally stored in capacitor X ? A) 58 \mathrm {~mJ} B) 0.96 \mathrm {~mJ} C) 29 \mathrm {~mJ} D) 0.24 \mathrm {~mJ} E) 0.48 \mathrm {~mJ}$

A)

58 \mathrm {~mJ}

0.96 \mathrm {~mJ}

29 \mathrm {~mJ}

0.24 \mathrm {~mJ}

0.48 \mathrm {~mJ}

A 120−V120 - \mathrm { V }120−V Rms Voltage At 1.00kHz1.00 \mathrm { kHz }1.00kHz

Multiple Choice

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A $120 - \mathrm { V }$ Rms Voltage At $1.00 \mathrm { kHz }$

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