Virtual Lab Capacitance

7. Each of three insulators forming a string has self-capacitance of "C farad. The shunt capacitance of each cap of msulator is 0 25 C to earth and 0-15 C to line. Calculate the voltage distribution across each insulator as a pecentage of line voltage to earth and the string efficiency.

Each of three insulators forming a string has self-capacitance of "C" farad. The shunt capacitance of each cap of insulator is 0-25 C to earth and 0-15 C to line. Calculate the voltage distribution across each insulator as a pecentage of line voltage to earth and the string efficiency.

4- Electrical failure of insulators occurs due to and 5- The other name of self-capacitance in a string of suspension insulators is ......

1. Describe the difference between the currents that exist in the wires leading to a capacitor when theses wires are connected to (a) a DC source and (b) an AC source.

How active components are different from passive electronic components explain with examples. How are electrolytic capacitors constructed? Explain how they are categories as polarized and non-polarized electrolytic capacitors.

The work function for the anode is bigger than that of the cathode, resulting in a so-called "contact-potential difference" between the anode and cathode. Its effect is to shift the entire Current vs. Voltage curve (why?). Estimate the contact potential difference. 7

With aid of diagrams of MOS capacitor constructions, explain how positive voltage applied to VGS that causes depletion of electrons and a creation of inversion layer.

Pls. write solution neatly

v.   What is the purpose of a capacitor in electronic circuits?

For direct current (dc), a capacitor acts like (a) a closed switch. (b) an open. (c) a short. (d) a small resistance.

The voltage signal coming out of the capacitor is with small ripples compare to the voltage signal out of the diode. True False

Describe the electrochemical double layer capacitor (EDLC) using carbon electrode. please use computer typing in order to be understanble

8. Each of the three insulators forming a string has a self capacitance of C farad The shunt capacitance of each insulator is 02C to earth and 0-1 C to line. A guard-ring increases the capacitance of line of the metal work of the lowest insulator to 0-3 C. Calculate the string efficiency of the arrangement: )with the guard ring. (7) without guard ring. 10 95% () 86 13%|

5. It is expresses the ratio of energy wasted to the energy stored in a capacitor. 6. It is the maximum capacitor voltage that causes the dielectric to become damage.. 7. A two terminal devices that consist of a coiled wire wound in a common core or in a free air. 8. It is measure of how much counter emf is generated in a circuit. 9. Henry is the unit of inductance. Name after the American physicist. 10. It is the condition of inducing an emf in a coil by magnetic fluc generated in another coil.

You are required to design a two types of load cells. A Cantilever beam load cell and a Hollow cylinder load cell. What equations would you use to measure strain and voltage.

Describe the electrochemical double layer capacitor (EDLC) using carbon electrode.

Provide 3 sample calculations involving DC circuit under transient current condition on series R-L and Series R-C circuit? Need a simple supplementary explanation, can't quite understand the definitions I have currently.

Explain the charging characteristics of a capacitor with ac voltage.

It is required to grade a string having seven suspension insulators. If the pin to earth capacitance are all equal to C, determine the line to pin capacitance that would give the same voltage across each insulator (C1, C2, …….C6)  of the string.

Q9/ The theory that describes the conduction in semiconductors, metals and insulators is called.. *

6- Why an insulator is represented as a capacitor C? What are the assumption modes?

please answer with written solution. thank you

(b) Measure (using the DVM and oscilloscope) the voltage drop Vc across the capacitor and explain the operation of the circuit.   the voltage drop Vc across the capacitor is 4.61V please explain question b

quick please

Question

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.

Describe how a capacitor can be used in a DC circuit to store charge /turn on a lightbulb without needing an active voltage source.

What is the equation thst represents the relationship between charge, capacitance and voltage for a capacitor.