A 9.0 V battery is connected to three capacitors in series. The capacitors have the following capacitances: 4.76 , 13.2 , and 32.2 . Calculate the voltage across the 32.2 capacitor.
first find equivaelent capacitance, 1/C =1/4.76 + 1/13.2 + 1/32.2
C=3.16 uF
so Q = CV = 3.16*9=28.44 uC
things in series share charge so V = Q/C = 28.44/32.2=0.883 V
Total capacitance of the capacitor= 1/(1/C1 +1/C2+1/C3)=1/(1/4.76+1/32.2+1/13.2)=3.15
Charge, Q=CV=9.0*3.15=28.4C
Ptential across 32.2C capacitor=Q/C=28.4/32.2=0.882V
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