PART Il: Open Response (Points as marked) rt to 11·[4 points) Calculate the tota

Question

PART Il: Open Response (Points as marked) rt to 11·[4 points) Calculate the total impedance offered by these two capacitors to a sinusoidal signal with a frequency of 3 kHz: C1 C2 0.022 12. [4 points] A doorbell ringer has a solenoid with an inductance of 63 mH connecte parallel with a lamp (for visual indication) having a resistance of 150 ohms Doorbell switch Solenoid IS V 60z Lamp the phase shift of the total current (in +-degrees) in relation to the t tage, when the doorbell switch is actuated.

Explanation / Answer

11) C1 = 0.01 uF

C2 = 0.022 uF

These two capacitors are in series =====> C = C1*C2/(C1 + C2) = 0.006875 uF

f = 3 kHz

w = 2pi*f = 18849.6 rad/s

Now Impedence = Reactance = 1/wC = 1/(18849.6*0.006875*10^-6) = 7716.6 ohm

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