A 250 resistor is connected in series with a 4.80 F capacitor and an ac source. The voltage across the capacitor is vc (7.60 V) sin[(120 rad/s)t]. Part A Determine the capacitive reactance of the capacitor. Express your answer with the appropriate units. Xc= Value Submit HA Part B Request Answer Units ? Derive an expression for the voltage UR across the resistor. O VR (120 V) sin((1.10 rad/s) t) O VR (120 V) cos((1.10 rad/s) t) O VR (1.10 V) sin((120 rad/s) t) O VR= (1.10 V) cos((120 rad/s) t)

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Chapter1: Units, Trigonometry. And Vectors
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Item 15
A 250 resistor is connected in series with a 4.80 μF capacitor and
an ac source. The voltage across the capacitor is
vc = (7.60 V) sin[(120 rad/s)t].
Part A
Determine the capacitive reactance of the capacitor.
Express your answer with the appropriate units.
Xc =
Submit
Part B
μA
Value
Submit
Request Answer
Units
Derive an expression for the voltage VR across the resistor.
O VR=
(120 V) sin((1.10 rad/s) t)
O VR = (120 V) cos((1.10 rad/s) t)
O VR = (1.10 V) sin((120 rad/s) t)
O VR = (1.10 V) cos((120 rad/s) t)
Request Answer
?
Transcribed Image Text:Item 15 A 250 resistor is connected in series with a 4.80 μF capacitor and an ac source. The voltage across the capacitor is vc = (7.60 V) sin[(120 rad/s)t]. Part A Determine the capacitive reactance of the capacitor. Express your answer with the appropriate units. Xc = Submit Part B μA Value Submit Request Answer Units Derive an expression for the voltage VR across the resistor. O VR= (120 V) sin((1.10 rad/s) t) O VR = (120 V) cos((1.10 rad/s) t) O VR = (1.10 V) sin((120 rad/s) t) O VR = (1.10 V) cos((120 rad/s) t) Request Answer ?
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