Subjects

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Capacitors & Capacitance | 8 mins | 0 completed | Learn |

Parallel Plate Capacitors | 20 mins | 0 completed | Learn Summary |

Energy Stored by Capacitor | 16 mins | 0 completed | Learn |

Capacitance Using Calculus | 8 mins | 0 completed | Learn |

Combining Capacitors in Series & Parallel | 16 mins | 0 completed | Learn |

Solving Capacitor Circuits | 29 mins | 0 completed | Learn |

Intro To Dielectrics | 18 mins | 0 completed | Learn Summary |

How Dielectrics Work | 3 mins | 0 completed | Learn |

Dielectric Breakdown | 5 mins | 0 completed | Learn |

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Concept #1: Capacitors & Capacitance (Intro)

(a) Find the voltage, V1 across the first capacitor. Express your answer in terms of V.(b) Find the charge Q on the first capacitor. Express your answer in terms of C and V1.(c) Using the value of Q just calculated, find the equivalent capacitance Ceq for this combination of capacitors in series. Express your answer in terms of C.

1) A capacitor consists of two 6.0-cm-diameter circular plates separated by 1.0 mm. The plates are charged to 170V , then the battery is removed.A) How much energy is stored in the capacitor?B) How much work must be done to pull the plates apart to where the distance between them is 2.0 mm?

A 4.80-µF capacitor that is initially uncharged is connected in series with a 7.40-kΩ resistor and an emf source with ε = 100 V and negligible internal resistance.A long time after the circuit is completed (after many time constants) what are the values of the quantities:A. The voltage drop across the resistor?B. The charge on the capacitor?C. The current through the resistor?

A 4.80-µF capacitor that is initially uncharged is connected in series with a 7.40-kΩ resistor and an emf source with ε = 100 V and negligible internal resistance.A. Just after the circuit is completed, what is the voltage drop across the capacitor?B. Just after the circuit is completed, what is the voltage drop across the resistor?C. Just after the circuit is completed, what is the charge on the capacitor?D. Just after the circuit is completed, what is the current through the resistor?

Six parallel-plate capacitors of identical plate separation have different plate areas ,different capacitances ,and different dielectrics filling the space between the plates.Part A. Rank the following capacitors on the basis of the dielectric constant of the material between the plates.Rank from largest to smallest.1. A = 4 cm2 C = 2 nF2. A = 1 cm2 C = 1 nF3. A = 2 cm2 C = 8 nF4. A = 8 cm2 C = 2 nF5. A = 4 cm2 C = 1 nF6. A = 2 cm2 C = 4 nF

You have two capacitors, one is 6.0 μF the other is 3.0 μF. You also have some wires and a 9.0 V battery. Determine the charges on each capacitor when a) Connected in parallel and b) connected in series

Suppose you wanted to store 27 μC of charge in a capacitor across a voltage of 120 V.What capacitance is needed in nF?

Dry air will break down if the electric field exceeds about 3.0x106 V/mPart AWhat amount of charge can be placed on a capacitor if the area of each plate is 8.6 cm2?Express your answer using two significant figures.

A vacuum-insulated parallel-plate capacitor with plate separation d has capacitance C0.What is the capacitance if an insulator with dielectric constant κ and thickness d/2 is slipped between the electrodes? Assume plate separation is unchanged.Express your answer in terms of the variables d, C0, and κ.C = ?

A combination of series and parallel connections of capacitors is shown in the figure. The sizes of these capacitors are given by the following data:C1 = 5.4 μFC2 = 3.7 μFC3 = 8.1 μFC4 = 1.2 μFC5 = 0.65 μFC6 = 14 μFFind the total capacitance of the combination of capacitors in microfarads

For the circuit of Figure 38, a. What is the equivalent capacitance?b. How much charge flows through the battery as the capacitors are being charged?

(a) What is the equivalent capacitance of the three capacitors in the figure below?(b) What is the equivalent capacitance of the three capacitors in the figure below?(c) What are the charge on and the potential difference across each capacitor the figure below?

For the capacitor network shown in (Figure 1) , the potential difference across ab is 48 V .A. Find the charge on the 150 nFcapacitor.B. Find the charge on the 120 nFcapacitor.C. Find the total energy stored in the network.D. Find the energy stored in the 150nF capacitor.E. Find the energy stored in the 120nF capacitor.F. Find the potential difference across the 150 nF capacitor.G. Find the potential difference across the 120 nF capacitor.

Part A. Rank the following capacitors on the basis of the dielectric constant of the material between the plates.Part B. Rank the capacitors on the basis of the charge stored on the positive plate.

How do you add capacitance for two capacitors, C1 and C2, when connected in parallel?

What property of objects is best measured by their capacitance?a) ability to conduct electric currentb) ability to distort an external electrostatic fieldc) ability to store charge

Two electrodes connected to a 9.0 V battery are charged to ±45 nC. What is the capacitance of the electrodes?

Six parallel-plate capacitors of identical plate separation have different plate areas ,different capacitances ,and different dielectrics filling the space between the plates.1. A = 4 cm2 C = 2 nF2. A = 1 cm2 C = 1 nF3. A = 2 cm2 C = 8 nF4. A = 8 cm2 C = 2 nF5. A = 4 cm2 C = 1 nF6. A = 2 cm2 C = 4 nFAll of the capacitors are now attached to batteries with the same potential difference.Rank the capacitors on the basis of the charge stored on the positive plate.Rank from largest to smallest.

The capacitors in each circuit (a) through (d) pictured to the right, discharge when the switch closes at t = 0 seconds. Rank in order from largest to smallest, the length of time it takes for the circuit to discharge (i.e., the time constant for each circuit). The individual capacitors all have the same capacitance, and the light bulbs are identical in all circuits.

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