The figure shows a circuit section of four air-filled capacitors that is connect
ID: 1589803 • Letter: T
Question
The figure shows a circuit section of four air-filled capacitors that is connected to a larger circuit. The graph below the section shows the electric potential V(x) as a function of position x along the lower part of the section, through capacitor 4. Similarly, the graph above the section shows the electric potential V(x) as a function of position x along the upper part of the section, through capacitors 1, 2, and 3. Capacitor 3 has a capacitance of 0.84 ?F. What are the capacitances of (a) capacitor 1 and (b) capacitor 2?
12 I I I I I I I I I I I I 2 V I I I I I I I I I I I I I I I IExplanation / Answer
since in series connection charge is same
Potential difference betweenn C3
V3 = 5V
since charge is same
C3 x 5 = C2 x 5
C3=C2
C2 = 0.84 uF
similarily
C1 x 2 = C3 X5
C1 = 2.1 uF
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