Quiz_6_ENGR 70

The capacitor acts like a/an ____ circuit when connected to a DC voltage or current source; _____ on a capacitor must be continuous and ____ might be discontinuous. (single answer)open, current, voltageclose, voltage, currentopen, voltage, currentopen, voltage, current

FILL IN THE BLANKS 1)When a positively charged metal touches an electroscope, electrons transfer from ______.2)Charging by ________________ is when two materials are brought into contact. 3)Charging by ________________ is when two materials are rubbed together. When a material has freely moving valence electrons, it is likely to be ___________________ . 4)As we add more charges in a certain location, electric field strength __________________ . 5)Charging by ______________ happens when an object effect on charges without contact and involves _________________ which means rearrangement of the charges in a neutral object.

Question 1a Which is necessary for electrons to flow from the negatively charged portion of the solar panel to the positively charged portion of the panel? Pick one answer and explain why. A) permit B) circuit C) diode D) charge controller   Question 1b. Which of the following is not a factor that affects how much power a solar panel will produce? Pick one answer and explain. A) the size of the panel B) the reflective coating on the panel C) the air temperature D) the relative humidity   Question 1c. Which of the following is the rating on a solar panel that indicates the theoretical maximum voltage a panel can produce when measured under standard test conditions? Pick one answer and explain why. A) maximum power (Pmax) B) maximum power voltage (Vmp) C) open circuit voltage (Voc) D) short circuit voltage (Isc)

Choose the correct answer and show your solution. *Kindly provide a COMPLETE and CLEAR solution* (Answer should be typewritten) *Please answer it ASAP if you can

1. The practical unit of electric charge. ____________ 2. A path for the current to flow. ______________ 3. DC Voltage has ________ polarity 4. Resistance to current flow in AC circuits, measured in ohms. ____________ 5-7. Types of grounds in electrical/electronics circuits. (5) ______________ (6) ______________ (7) ______________ 8. Also known as Ohm’s Law. ________________

Multiple Choices: Choose the BEST answer for each item. It states that the total current directed into a junction must be equal the total current directed out of the junction. Loop rule Junction rule     c. Resistance           d. Capacitance It happens when the direction of the current is directed towards a higher potential region to a lower potential region. Voltage drop Voltage rise       c. Current drop    d. Current rise It is necessarily to find ______ of current to solve the circuit according to the Kirchhoff’s Laws. value direction           c. symbol              d. speed In any closed path of a system the algebraic sum of IR is equal to the E.M.F of same path.   True False                 c. either a or b        d. none of these In any system, the algebra sum of the currents meeting at a junction point is zero, which is stated in Kirchhoff’s Current Law.   True False                 c. either a or b        d. none of these

Sustainable energy folks are investigating the possibility of creating super sized banks of capacitors that store electrical energy during low demand times so that it can be used during peak demand times. Suppose such a capacitor was designed to deliver 3.50 Megawatts for a period of 8.00 hours. (1 Megawatt is 1 million Watts). By how much would this capacitor bank's mass decrease as it is discharged? ________ kg

In the figure, the ideal batteries have emfs ℰ1 = 25.0 V and ℰ2 = 0.500ℰ1, and the resistances are each 2.14 Ω. (a) What is the current in resistor 2? ______________A(b) What is the current in resistor 3? ______________A (please show the units when working through the problem so that I can follow it easier)

Deflection of an electron beam by electric fieldFollow the method to calculate how the voltage between the vertical plates varies the height of the election beam in the region between the plates.Method: 1- your Crooked tube is similar to the CRT of an oscilloscope. The main difference being that your tube has no horizontal deflectors, only vertical ones. The electron gun (“C”) is used to accelerate electrons. Draw a diagram of the barrel and deflector plates. Represent an electron coming out of the barrel with a horizontal velocity v0. 2- Assuming no deviation, trace the trajectory of the election between the plates. The undeflected position of the electron beam will serve as a reference. Suppose now that the electron, while crossing the plates, is deflected upwards. The vertical difference between the two points of impact on the TRC screen is the delta y deviation that we are looking for. If the electron is deflected upward, what is the orientation of the electric field between the…

Semiconductor devices have the following advantages over vacuum tubes: They are _________, ____________, and __________.

A PMMC instrument has internal resistance of 0.8 kΩ and gives full scale deflection for 33 mA. The required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage range 75 V will be __________________ ohms. a. 226.47 b. -360.00 c. 1472.73 d. 93717.00

1: The intrinsic breakdown is assumed to occur when electrons in solid sample gain sufficient energy from the applied field to cross the _____________ energy from the valence dielectric to conduction band.   2:Treeing phenomenon is observed in _________________.

Needs Complete typed solution with 100 % accuracy.

What will be the unit of hole mobility?

An uncharged condenser in series with a 120V voltmeter of 10,000 ohms resistance is suddenly connected to a 100V battery. One second later, the voltmeter reads 60 volt. Determine the capacitance of the condenser.  *Round off the final answer to the nearest 4 decimal places with unit. Rounding off should only be done on final answer.

Ohm's Law states that the electric current flowing though a ________ is directly proportional to the ________. Select one: a. closed circuit --- total resistance b. closed circuit --- switch resistance c. open circuit --- supply voltage d. closed circuit --- supply voltage

A semiconductor is a material that has _____ energy band gap. a)no b)wide c)narrow d)nuclear

Multiple Choice1. The total capacitance of a series connected network will be ________ than the smallest capacitance on the network.a. smaller b. larger c. slightly largerd. none of the above2. This is the property of a material to be affected or to affect an electric field.a. Permissibility b. Permeability c. Permittivityd. Permeance3. The ratio of the charge that can be stored on the plates of a capacitor versus the applied voltage is ___________.a. Capacitance b. Permittancec. Permeance d. Dielectric constant4. For capacitors connected in series, the ________ is equal for all the capacitors in the network.a. charge b. voltage c. capacitanced. electric field5. For capacitors connected in parallel, the ________ is equal for all the capacitors in the network.a. charge b. voltage c. capacitanced. electric field6. An insulating material inserted on the space separating the conducting plates of a capacitora. insulator b. dielectric c. conductord. diaelectric7. Two capacitors of…

The subject is: Different Types of Energy Storage System Please send the answer by typing ONLY. I don't want any handwritten.   Question: 5What is called Supercapacitors? How it works?

please help me to this question, i already asked my instructor, he told me this is a complete question...

Valence electrons are _____.  1. the total number of electrons in a charged element.2. the total number of electrons in a inner shell.3. the total number of electrons in a valence shell.4. the total number of electrons in a neutral element.

Hello, I have a question for my material science question I am having trouble answering. The question is listed down below. Thanks. Aluminum’s electrical conductivity should make it a candidate for wiring in electronic equipment. What is a limiting factor in its use as wiring?

1: ____________ damage occurred upon breakdown and the insulator needs to be replaced with the new one. 2:The liquid dielectrics contain voids or cavities within the medium or at the boundaries between the dielectric and the electrodes. The electric field strength in the voids is ____________ than that across the dielectric.

This is not a project and/or assignment for marks, as theses are textbook questions, and will not be copying the tutors work/answers. Please answer all the questions in the space provided and in full details. Answer in complete sentences. Take as much time as needed to answer all of the questions correct please and thank you. Will write a very neat and wonderful review afterwards.

a) Write down and prove DeMorgan's theorem. b) Remove the following complements using DeMorgan's theorems. ______________________           _________________                   _____________ P+ Q + (C+D.E').  (F+G)

What is the maximum number or electrons that can exist in the 3rd shell of an atom? Please explain properly. Will give thumbs up.

Alternating current is __________. Select one: A. AN ALTERNATING FLOW OF ELECTRONS B. ELECTRONS REVERSING THEIR FLOW AT REGULAR INTERVALS C. THE MOST COMMONLY USED CURRENT D. ALL OF THE ABOVE

The subject is: Different Types of Energy Storage System (Compare between different energy storage systems)  Please send the answer by typing ONLY. I don't want any handwritten.   Question: 6. What are the advantages and disadvantages of supercapacitors?