Compact “ultracapacitors” with capacitance values up toseveral thousand farads are now commercially available.One application for ultracapacitors is in providing power forelectrical circuits when other sources (such as a battery) areturned off. To get an idea of how much charge can be storedin such a component, assume a 1200-F ultracapacitor isinitially charged to 12.0 V by a battery and is then disconnected from the battery. If charge is then drawn off the platesof this capacitor at a rate of say 1.0 mC /s, to power thebackup memory of some electrical device, how long (in days)will it take for the potential difference across this capacitorto drop to 6.0 V?

Q: Determine the equivalent capacitance in microfarads of the combination shown when C= 10.3I µF.

A:

Q: Find the equivalent capacitance between points A and B of the infinite chain of capacitors below.…

A:

Q: Suppose a certain battery has an internal emf of 9.00 V but the potential difference across its…

A: Capacitance , C = 56 μF = 56 x 10-6 F emf , E = 9 V To find = energy stored in the capacitor .

Q: A 20 uF capacitor is charged to 120 V and then disconnected from the power supply. If a second…

A: When two capacitors are connected in parallel the equivalent capacitance of the capacitor is the sum…

Q: Find the total energy stored ( in units of mJ) in the group of capacitors shown below given that the…

A: Given: Capacitance of C1=50 μF=50×10-6 F, C2=10 μF=10×10-6 F, C3=20 μF=20×10-6 F Voltage across ab,…

Q: A dielectic having relative dietectnic constant ,3 is inserted between the plates of a parallel…

A:

Q: The giant axon of a squid is 0.5 mm in diameter, 10 cm long, and not myelinated. Unmyelinated cell…

A:

Q: 3. A 20 µF capacitor is charged to 120 V and then disconnected from the power supply. If a second…

A: Given that, value of capacitor C1 and Capacitor C2 and voltage across capacitor C2. When capacitor…

Q: Given four 2-F capacitors that are connected in parallel, what is the total or equivalent…

A:

Q: apacitor is composed of 2 plates separated by a sheet of insulating material 2mm thick and of…

A:

Q: Find the total energy stored ( in units of mJ) in the group of capacitors shown below given that the…

A:

Q: Two capacitors are connected in series and to a 12-V battery. How does the magnitude of charge on…

A: Equivalent of capacitance of two capacitors C1 and C 2 , if they are arranged series.  Ceq = C1 ×…

Q: 6.4 Three capacitors are connected in series. The equivalent capacitance of this combination is 3.00…

A: If a number of capacitors C1, C2, C3connected in series the equivalent capacitance Cequ is given by,…

Q: Find the total energy stored ( in units of mJ) in the group of capacitors shown below given that the…

A:

Q: Two capacitors, one that has a capacitance of 3.90 µF and one that has a capacitance of 11.9 µF, are…

A: (a) The potential difference across the capacitor 3.90 μF is, V1=QC1=CVC1=C1C2C1+C2VC1=(15.0…

Q: A 175-pF capacitor is connected in series with an unknowncapacitor, and as a series combination they…

A: C1 = 175 pC  q = 125pC  V = 25 V

Q: How would three (3) identical 3.0 pF capacitors be combined in order to acquire an effective…

A:

Q: Net capacitance of three identical capacitors in series is 3 pF. What will be their net capacitance…

A: Given that, The net capacitance of three identical capacitors in series is 3 pF. The equivalent…

Q: In the circuit given below, C1=6.0 µF, C2=3.0 µF, C3= 5 µF, and C4=4 µF. If the potential difference…

A:

Q: A 20.0 mF capacitor is charged to a potential differenceof 800 V. The terminals of the charged…

A: The potential difference =800v  To find the decrease in energy when the capacitors are connected

Q: Determine the voltage across a 2-µF capacitor if the current through it is i(t) = 6e 3000e

A: By assuming that the initial capacitor voltage is zero. Since, ν = 1C∫0t i dt + ν0 and v0 = 0,ν =…

Q: For the figure shown if the capacitors are connected to a 15V battery 6.00 uF 4P 8.00 µF 2.00 uF…

A: Given: Capacitors are arranged as portrayed in figure. C1=8 μF (left)  C2=6 μF C3=2 μF C4=8 μF…

Q: Acapacitor stores charge qata potential difference aV. Ifthe voltage applied by a battery to the…

A: Capacitance is a property of capacitor which opposes the rate of change of voltage.  In simple words…

Q: the given network is connected to Vab = 30V with the dialectric of each capacitor as air, calculate…

A:

Q: Two identical parallel-plate capacitors, each with capacitance 10.0 mF, are charged to potential…

A:

Q: It turns out that the dielectric k constant increases the capacitance by a factor of k.  That is,…

A:

Q: In the figure below, assuming C=55.6µC and V-V= 9.5V, find the total energy stored in the system of…

A: Given,

Q: Net capacitance of three identical capacitors in series is 1 pF. What will be their net capacitance…

A: when the capacitors are connected in series combination the equivalent capacitance becomes,…

Q: Find the total capacitance ?totCtot of the combination of capacitors shown in the figure, where…

A: The capacitance of capacitors in series is  1CS=1C1+1C1+...…

Q: As shown, the capacitors are charged to a potential difference of 100 V but with opposite polarity.…

A:

Q: Using a 1-mF capacitor, a 2-mF capacitor, and a 3-mFcapacitor, which of the following capacitances…

A: Calculate the maximum and minimum capacitances of these three capacitors (highest capacitance is…

Q: Assuming that the battery is 12V, and all capacitors are 4 nF, what is the charge on the top C after…

A: Voltage of battery = 12V

Q: 3.00 μF6.00 μF 2.00 μF 4.00 μ 90.0 V For the system of capacitors shown above, which of the…

A:

Q: You have a number of identical capacitors, each with a capacitance of 10 micro F, and a working…

A: Given each capacitor is Having a capacitance of 10 micro F we need a capacitance of 20 micro F total…

Q: (II) Two capacitors connected in parallel produce anequivalent capacitance of 35.0µF but when…

A: When two capacitors are attached in parallel, then the equivalent capacitance will be, When two…

Q: For the figure shown if the capacitors are connected to a 18V battery 6.00 µF 8.00 μF 2.00 µF 8.00…

A:

Q: 4V Questions 125 - 127 consider the capacitors in capacitance of 2 uF. 125. the circuit above. Each…

A:

Q: Find the equivalent capacitance (in µF) between points a and b in the shown combination. All…

A:

Q: capacitor is constructed with a plate separation of d=0.0002976m and plate area of 0.33m^2. What is…

A: Dielectric strength maximum voltage required to produce a dielectric breakdown through the material…

Q: Giuen this network of capacitors ce UF 3uF A C4 2UF QuF the dielectric o each capacitor is air and…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Given 2-F, 3-F, and 4-F capacitors that are connected in parallel with a 10V source, what is the…

A:

Q: Figure given below shows capacitor 1 (C = 8.00 µF), capacitor 2 (C2 = 6.00 µF), and capacitor 3 (Cz…

A: The capacitors C1 , C2 , C3 form a series combination equivalent to a single capacitor , 1Cs = 1C1+…

Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.