Question

Part a)An alternating current circuit (ac) is composed of the source and just an inductor, what is the average magnetic energy stored in the inductor  during 5 complete cycles?

a)Depends on the value of omega.

b)Zero

c)5 Vrms

d)5 I rms

e)5 * B^2/(2 mu-zero)

Part b)An L-R-C circuit consists of a 2.00 microF capacitor, a 10 .0 mH inductor and a 75 ohm resistor.  It is connected in series to an ac source that generates a voltage of  v = 200 cos 1500 t.  The amplitude of the capacitor voltage is:

Group of answer choices

a)549

b)zero

c)12.6

d)204

e)888.8

Answer 1

We know that Average Energy stored As in the Inductor is ? U= 8² 2 la Rc Is_2 R LE c L lomt coquf SH v=goo Cos we v= 200 Cosisoot - 200 voltage across the capacitor Vc = Ito Vo to z amplitude 200 where za zoo For only Ve = Xe JR²+ (AL-Xej p2+(_- Yc] XL = WL (soo) (104133) = 152 (1500 Maxis = quo .put the values Ve (75)²+ (is- Love - Ye=4 wa 200 sooo 3 3

Ve 2 203.84 + Ve ñ gou vole! Asi
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