Fill in the blanks Four capacitors are connected as shown in the figure below (C

Question

Fill in the blanks Four capacitors are connected as shown in the figure below (C 14.0 F) ? 4.00 11 F 22.0 uF 7.00 ?F (a) Find the equivalent capacitance between points a and b Round your answer to three significant figures. (b) If AVab - 18.5 V, calculate the charge on the the 22.0 pF capacitor. Round your answer to three significant figures. (c) If LV , -18.5 V, calculate the charge on the the 7.00 ? F capacitor Round your answer to three significant figures (d) If Vab - 18.5 V, calculate the charge on the the Round your answer to three significant figures 4.00 ?Fcapacitor. (e) If AVab - 18.5 V, calculate the charge on the the capacitor C. Round your answer to three significant figures

Explanation / Answer

here,

C = 14 uF

C and 4 uF are in series , their equivalent capacitance , C1 = C * 4 /( C + 4)

C1 = 14 * 4 /( 14 + 4)

C1 = 3.1 uF

a)

(C1 + 7 uF) and 22 uF are in series , let the equivalent capacitance be Ceq

Ceq = ( C1 + 7) * 22 /( C1 + 7 + 22)

Ceq = ( 3.1 + 7) * 22 /( 3.1 + 7 + 22)

Ceq = 6.92 uF

b)

V = 18.5 V

the charge across 22 uF , Q2 = V * Ceq

Q2 = 6.92 * 18.5 uC = 128 uC

c)

the potential across 7 uF , V3 = V - Q2 /22

V3 = 12.7 V

the charge across 7 uF , Q3 = V3 * 7 uC

Q3 = 88.8 uC

d)

the charge across 4 uF , Q4 = Q2 - Q3 = 39.2 uC

e)

the charge across C , Q = Q4 = 39.2 uC

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.