Lab-03_Capacitors and Capacitance_updated

The given voltage should be proven the same in the solution. Thanks.

1. Write the answer for the following questions. A. Define Electric field strength B. State five practical applications of capacitors C. Name five types of capacitor commonly used D. Define Permittivity

1. Write the answer for the following questions. A. Define Electric field strength. B. What are the factors affecting the capacitance of a parallel plate capacitor? C. State the coulombs Law with its equation.

Q1 (a) (b) (c) State the meaning of primary cells. What is the 3 factors affecting capacitance value? State the formula of capacitance in part (b).

Question

Referring to the circuit in the figure shown, determine:(a) the voltage across each capacitor.b) the energy stored in each capacitor. Note: I leave the image of the exercises in Spanish, but it is easy to understand. Also in the other image is the correct final answer, for checking.

Please help.

Questions Q1- Prove that the voltage on a capacitor reach 63% from the final voltage after T time (charge state).

a. As capacitor charges, describe the behavior of: i.current with time  ii. the voltage across the resistor with time  iii. capacitor voltage withtime  Explain the reason for each behavior.

What do you think will happen to the current if the frequency is adjusted higher in the pure inductance experiment? and what will happen to the current if the frequency is adjusted lower in pure inductance experiment? explain why please

Question 3 (a) Briefly describe the capacitance of a capacitor. i. When area between the plates of a capacitor changes ii. When distance between the plates of the capacitor changes

QUESTION 1 a) State two (2) main properties or acts of each capacitor and inductor in RL and RC cireuit analysis ( voltage and current ). b) Define what is capacitor and inductor. Support the answers with an appropriate illustration of capacitor and inductor basic structure. c) Natural response happens to all passive storage element component. Explain natural response for circuit behaviour for a capacitor with an appropriate illustration. d) The switch in circuit Figure 1 has been closed at t 0. 6 A 10 0 i(t) 7.5 H Figure 1: First Order RL Circuit

What causes transients? Select one or more: a. Energy is stored into capacitance and inductance b. Power required for transporting energy can be infinite c. The power required for transporting energy cannot be infinite Od. Energy is stored into resistance and capacitance e. Energy is stored into resistance, capacitance and inductance

B. Combination of Capacitors (connect it with a battery and LED) 1. Connect in series any 3 capacitors made in Procedure A. 2. Measure the equivalent effective capacitance of the combination. 3. Compute this theoretical value of capacitors in series using the formula 1_1, 1, 1 Crotat C* C*G, 4. Repeat steps 1 and 2 but this time connect the capacitors in parallel. Compute this theoretical value of capacitance in parallel using the formula below. Crotal = C + Cz + C, 5. Compute the percent error for both connections. Record all your observations and results in the table below. Table 2 Capacitor 1 Capacitor 2 Capacitor 3 Experimental capacitance (in series) Experimental capacitance (in parallel) Conclusions: Questions: 1. How does the area of the aluminum foil affect the capacitance if the paper capacitor? 2. How does the thickness of the paper dielectric affect the capacitance of the paper capacitors? 3. Did you get the same capacitance using different types of paper? What do you think…

Q1 b) Derive the current waveform for a 10μF capacitor if the voltage across the capacitor is as shown in Figure Q1(b). c) The voltage across a 10 F capacitor is v(t) = 5te-2t V. Determine the current that flows into the capacitor and the electrical power of the capacitor. d) Calculate the voltage across each capacitors in Figure Q1(d) during steady state.

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Please determine if each question is True. If false, please explain why a) A fully charged capacitor behaves identically to a break in the wire (i.e. no current passes through it).b) An uncharged capacitor behaves identically to a break in the wire (i.e. no current passes through it).c) Whether charging or discharging a capacitor, the charge on the capacitor can be modeled using an exponentiallyincreasing function.

Q.3 (a) A capacitor's structure is made up of two conductors that are separated by a dielectric material. Describe the phenomenon that allow the flow of current through the dielectric material. Include in the description relevant mathematical derivation of the abovementioned phenomenon. (b) A capacitor such as illustrated in Figure Q.3 is constructed using copper as plate A and plate B plus a dielectric material with ɛ, 3.8 and o = 4 S/m between the plates. Potential difference plates A across is VAB (t) = Vo cos(2n x 10°t) V. Assume that Plate A and plate B carry charges +Q(t) and and -Q(t) respectively as well as fringing field at the edge of the plates can be ignored, determine: (i) Q(t) if the capacitance is 2.135 x 10-11 F (ii) M(t) if electric field within the capacitor, E(t) = M(t) fV/m Based on Q.3(b)(ii), examine: (iii) Conduction current density and conduction current. UNIVE (iv) Displacement current density and displacement current. arch ASUS VivoBook

a) Define Potential Gradient? b) Write any four name of the practical types of capacitor? c) How do you discharge the capacitor?

answer question 1.b iii only.. please quickly in 1 hours… thank you

Using table 1, complete table 2.

Web/Home F4 Search F8 F9 c) Some capacitors are marked 45micro farad save working voltage 25V. On a circuit diagram show how a number of these capacitors may be connected to show a capacitor of capacitance; 45 micro farads safe working voltage of 50 volts. 75 micro farads safe working voltage of 25 volts. 1. I.

If values are not given than write sufficient formula with explanation.........