i got all of the answers except h, why isnt it the same formula as d??? i have t

Question

i got all of the answers except h, why isnt it the same formula as d??? i have tried many different times please help!!

Following Activity 2-1, a 501 nF capacitor (C) is connected in series with a 543 ? reference resistor (R0).  [See Figure 8.4 in the manual.]  Vmax, the signal generator?s amplitude (or magnitude or peak voltage), is set to 3.97 V and f, the generator?s frequency, is set to 47.6 Hz.

a.) The impedance of the circuit is:

b.) The amplitude of the voltage across R0 is:

c.) The amplitude of the voltage across C is:

d.) The phase shift between the current through the circuit and the driving voltage is:

Explanation / Answer

h)

Xc=1/2pifC =1/2pi*833*501*10^-9

Xc=381.36ohms

phase shift

o =tan^-1(-Xc/R) =tan^-1(-381.36/543)

o=-35.1degrees

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