ole double-throw (DPDT) switch wires w/ alligator-clip leads altimeter (capable

Question

ole double-throw (DPDT) switch wires w/ alligator-clip leads altimeter (capable of measuring capacitance) ifferential voltage probes w/ LabPro interface C1 C2 Batt Figure (2a) Figure (2b) The idea is that we could replace the combination of capacitors in each circuit with a single equivalent capacitor. This would simplify the circuit to look like Figure 1 again. The capacitance charge, and voltage of that single equivalent capacitor would obey the equation: C Qu/veg. In addition, for the simple circuits indicated above, the equivalent voltage would also be equal to the battery's voltage: Ve Vban. 1 u tor circuits that will allow us to completely solv

Explanation / Answer

1) a. 1/ceq = 1/c1+1/c2+1/c3

c eq = 6.65*10^-6F

b) q = cv

q = 6.65*10^-6*6 = 39.9*10^-6 C

in series charge must same on the each capacitor

q1 = q2 = q3 = q

v1 = q/c1 = 39.9/11.3 = 3.53 V

v2 = q/c2 = 39.9/24.2 = 1.65 V

v3 = q/c3 = 39.9/48.9 = 0.82 V

c) q1 = q2 = q3 = 39.9*10^-6 C

2) a) ceq = c1+c2+c3 = 84.4*10^-6 F

b) in parallel circuit v must same

v = v1=v2+v3 = 6 V

c) q1 = c1v = 67.8*10^-6 C

q2 = 145.2*10^-6 C

q3 = 293.4*10^-6 C

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