120 V is connected across terminals A and B. Calculate the energy stored in the circuit...

Question

Question

Answer 1

Answer #1

net capacitance of 24uF ,12uF and 8uF is (1/Cx) = (1/24)+(1/12)+(1/8)

Cx = 4 uF

this Cx is in parallel with 4uF then Cy = 4+4 = 8 uF

this Cy ,5uF and 6uF are in series

then net capacitance of the circuit is 1/(C_AB) = (1/8)+(1/5)+(1/6)

C_AB = 2.03 uF

energy stored in this circuit is U = 0.5*C*V^2 = 0.5*2.03*10^-6**120^2 = 0.014616 J = 14.61 mJ

b) potential difference across 4uF capacitor is Qnet /Cy = Cnet*V/Cy = (2.03*10^-6*120)/(8*10^-6) = 30.45 V

then charge on 4uF is Q = Cy*V1 = 4*10^-6*30.45 = 121.8*10^-6 C = 121.8 uC

Answer 2

Similar Homework Help Questions

P1: Calculate voltage across and energy stored in each capacitor. 40 μF 20 μF 120 V...

P1: Calculate voltage across and energy stored in each capacitor. 40 μF 20 μF 120 V (+
In the figure below, a 18.0 V battery is connected across capacitors of capacitances with the...

In the figure below, a 18.0 V battery is connected across capacitors of capacitances with the following values. C_1 = C_6 = 2.90 mu F C_3 = C_5 = 3.70 mu F C_2 = C_4 = 1.85 mu F (a) What is the equivalent capacitance C_eq? mu F (b) What is the charge stored by C_eq? C (c) What is V_1 of capacitor 1? V (d) What is q_1 of capacitor 1? C (e What is V_2 of capacitor 2?...
At time t = 0, a 650.0 Ohm resistor is connected across the terminals of a...

At time t = 0, a 650.0 Ohm resistor is connected across the terminals of a 17.0 nF capacitor that carries a charge of 8.20 mu C. a. What is the maximum current through the resistor? b. What is the current in the resistor at t = 5.00 mu s? c. What is the charge remaining on the capacitor plates at t = 5.00 mu s?

6. A parallel-plate capacitor has plates of area 500 cm2 and is connected across the terminals...

6. A parallel-plate capacitor has plates of area 500 cm2 and is connected across the terminals of a battery. After some time has passed, the capacitor is disconnected from the battery. When the plates are then moved 0.50 cm farther apart, the charge on each plate remains constant but the potential difference between the plates increases by 100 V. (a) What is the magnitude of the charge on each plate? (b) Determine the change in stored energy in the capacitor...
A parallel-plate capacitor has plates of area 400 cm2 and is connected across the terminals of...

A parallel-plate capacitor has plates of area 400 cm2 and is connected across the terminals of a battery. After some time has passed, the capacitor is disconnected from the battery. When the plates are then moved 0.40 cm farther apart, the charge on each plate remains constant but the potential difference between the plates increases by 100 V. (a) What is the magnitude of the charge on each plate? (5) Determine the change in stored energy in the capacitor due...
Calculate the energy stored on a single 0.000816 F capacitor connected to a 86.7 V battery

Calculate the energy stored on a single 0.000816 F capacitor connected to a 86.7 V battery

A parallal-plata capacitor with plates of arca 350 cm2 and is connected across the terminals of...

A parallal-plata capacitor with plates of arca 350 cm2 and is connected across the terminals of a hattary. After soma tima has passod, the capacitor ls disconnectad from the battary. when the plates are than moved 0.47 cm farthar apart, tha charge on aach plata remains constant but the potential ditterence between the plates increases by 100 V (a) What is the magnitude of the charge on cach plate? ynu aspect the energy stored in the capacitor to Incraase, decraase,...
3. 15 MF Find the equivalent capacitance of the circuit shown in the diagram. If an...

3. 15 MF Find the equivalent capacitance of the circuit shown in the diagram. If an 18 V battery is connected to terminals A and B, find the charge on each capacitor, the voltage across the 8.2 pF and 22 F capacitors, and the total energy stored in the circuit A B 8.2uF 22uF
In Fig. 25-31, a 20.0 V battery is connected across capacitors of capacitances C_1 = C_6...

In Fig. 25-31, a 20.0 V battery is connected across capacitors of capacitances C_1 = C_6 = 3.00 mu F and C_3 = C_5 = 2.00C_2 = 2.00 C_4 = 4.00 mu F. What are (a) the equivalent capacitance C_eq of the capacitors and (b) the charge stored by C_eq the What are (c) V_1 and (d) q_1 of capacitor 1, (e) V_2 and (f) q_2 of capacitor 2, and (g) V_3 and (h) q_3 of capacitor 3?

Two parallel plates, each having area A 3676cm are connected to the terminals of a battery of voltage V, 6 V A as shown...

Two parallel plates, each having area A 3676cm are connected to the terminals of a battery of voltage V, 6 V A as shown. The plates are separated by a distance d 0.42cm. You may assume (contrary to the drawing) that the separation between the plates is small compared to a linear dimension of the plate + A 1) What is C, the capacitance of this parallel plate capacitor? 7.746E-4 uF Submit 2) What is Q, the charge stored on...