Exp 2-02

2: we had equally like charges arranged in a pattern of of aclock face. There are 12 equally like charges arranged in a clock face patternof radius R. Determine then, if we were to bring a like charge from infinitedistance to the center. What is the electric potential?

A positively charge particle is traveling between two relatively infinitely long electrically energized metallic Rod A rods as shown below. At which direction will the particle deflect? O Upwards O Into the page Out of the page Downwards U O The particle will not be deflected, but instead continue along its path on a straight line Rod B

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5) ) The point charge at the bottom of the figure is, Q = 17 nC and the curve is a circular arc, of radius r = 5 cm. What is the magnitude of the force on the charge Q due to the other point charges shown? -6.0 nC 2.0 nC 2.0 nC 45° 45° 5.0 cm 5.0 cm +) Explain or Show Work Here:

2. When a current of 1A flows through a wire, the drift velocity of the electrons is 0.9 mm/s. What will be the drift velocity of the electrons when a 2A current flows through another wire of the same material having double the length and double the area of cross section and same temperature.

One of the methods of charging materials wherein the transfer of charges is due to the contact between two materials and depends also on the nature of the materials.     Select one: a. charging by conduction b. charging by friction c. charging by induction d. charging by grounding

Why electrons are more mobile than the holes? Please explain

Four point charges are placed at corners of a square . At the top left is a charge of - 1 C, at the top right is a charge of - 2 C, at the bottom right is a charge of -3 Cand at the bottom left is a charge of - 4 C. What is the direction of the net electric force due to the four point charges on a positive charge Q located at the center of square ? O due North O due South O Sw O SE

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(b) Consider the diagram of a conducting wire of Figure Q1(b)6). i. Determine the charge of 7.573 x 1017 electrons. ii. If this number of electrons moves uniformly from the left end of the wire to the right end in 1 ms (millisecond), what is the current flows through the wire? iii. How many electrons must pass a given point in 1 minute to produce a current of 10 A? iv. If the charge profile across the cross section of the conductor from left to right is given by g(t) = t + 0.2est C for t2 0 and zero for t < 0, plot the profile of the current that flows across the boundary. In what direction would the current flow? v. Repeat part (iv) for the charge profile (in Coulomb) sketched in Figure Q1(b)(ii).

Charges A andB are placed a distance of 1.5m from one another. The charge of particle A is 0.3 C whereas the charge of particle B is 0.4 C. Charge B experiences an electrostatic force of FB from charge A. Similarly, charge A experiences an electrostatic force of FA from charge B. What is the ratio of FA to FB?

Given Four point charges, of 1.00 nC each, located at P1(0.00, -2.00, 0.00)m, P2(0.00, 2.00, 0.00)m, P3(0.00, 0.00, -2.00)m and P4(0.00, 0.00, +2.00)m. The total force acting on a 1.00 nC charge located at point P (2.00, 0.00, 0.00)m is equal to: O a. F-3,18 (ax )nN O b. F=3,18 (ay )nN OC. FON O d. F=3,18 (az) nN

Discussions:Voltage Distribution and String Efficiency of a Model Suspension Insulator       1- Comment on the results obtained.2- Give reasons for unequal potential distribution over the string.3- What is the effect of this un equality on the insulators?4- Can value of the string efficiency being equal to 100%. Explain your answer.5- Outline methods used to equalize the potential across the units.6- Why an insulator is represented as a capacitor C? What are the assumptionmodes?

b) chose from column A what is suitable for column B: 1- 2- 3- 4- 5- A Matter Atom Current Resistance Electricity B Is an invisible force that can produce light, heat by attraction. The opposition or restriction the flow of charge and measured by ohm. The rate of flow of charge and measured by ampere. Is generally described as anything that has weight and occupies space. Is the smallest particle to which an element can be reduced.

Question 3 a. Some materials exhibit the property of superconductivity under certain conditions. State what is meant by superconductivity and explain the required conditions for the material to become superconducting. b. The diagram below shows the cross-section of a cable consisting of parallel filaments that can be made superconducting, embedded in a cylinder of copper. copper cylinder filament The cross-sectional area of the copper in the cable is 2.28 x 10-7 m². The resistance of the copper in a 1.0 m length of the cable is 0.075 N. Calculate the resistivity of the copper, stating an appropriate unit. State and explain the what happen to the resistance of the cable when the embedded filaments of wire are made superconductive? i.

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The 0.6 m rod of a metal elongates 0.67 mm on heating from 35 to 90 C. Determine the value of the linear coefficient of thermal expansion for .this material

Q1/ DISCUSSION QUESTIONS 1) How do like/unlike charges behave? 2) What happens when some external forces start acting on charged particles within the material? 3) What is an electric current? 4) What did G. S. Ohm find? 5) What is voltage? 6) How do electrons flow through a conductor? 7) What makes electrons move through a conductor? 8) What is resistance? 9) Explain the relationship between the number of free electrons in the conductor and its resistance. 10)What does the resistance of a conductor depend on? 11)How does the resistance of a conductor depend on: a)the material of which the conductor is made, b)the cross-section, c)the length and d)the temperature? 12)What does the symbol "I" stand for? 13)What is the intensity of the current determined by? 14)State Ohm's law.

15. Which of the following is TRUE? a.   A conductor has a large amount of energy gap between conduction band and valance band b.   A semi-conductor material does not allow the flow of electrons at all time. c.   A good insulator material has 8 valance electrons d.   A good conductor material has 3 valance electrons.

Write the answers precisely, do not elaborate unnecessarily, and don't use chatgpt, if i caught it I'm gonna downvote Question: Discuss the electrochemical techniques that are useful to study the capacitive properties of a material. Highlight the importance of each technique

D. Is the potential energy of the positive point charge positive, negative, or zero? Explain.

A negative charge of -0.0005 C exerts an attractive force of 9.0 N on a second charge that is 10 m. away. What is the magnitude of the second charge?

1.   Explain the term “ mobility of charge carriers”.

6. You take a copper wire as shown in the figure, where the cross-section area A doubles between parts 1 and 2 of same length, and apply a potential difference across it so that a current flows from part 1 to 2. What happens in part 2 of the wire, as compared to part 1?" r A) The electron current increases B) The electron density increases C) The resistance increases D) The electric field or drift speed decrease E) The electric field and drift speed decrease E

Moving to another question will save this response. Question 6 Electric field terminates at.. Neither positive nor negative Positive charge Negative charge Both positive and negative A Moving to another question will save this response.

Processing Questions:1. What can you predict about the polarities of charges? Why?2. What happens when you move the two balloons near each other after rubbing?3. What is the role of electron transfer in electrostatic charging by rubbing?

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

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An electron starts from rest. There are two charged plates, 12 cm apart, which an electric field strength of 175 N/C, that accelerate an electron into a magnetic field, which has a field strength of 0.260T (refer to the diagram below) (a) What is the speed of the electron as it leaves the plates/ enters the magnetic field (b) What is the magnetic force acting on the electron when it is in the magnetic field (c) What is the radius of the path the electron takes in the magnetic field (Draw the path the electron takes/ state initial direction of turn)

An 18-gauge copper wire with a diameter of 1-mm carries a constant current of 1-A. The charge concentration in the wire is 8.5 x 1028 per cubic meter. Determine the electric field in mN/C. Use q = 1.602 x 10-19 and resistivity equal to 1.72x10-8 ohm-m.

1. Given a cube box with a dimension of 1m each side and has a 5µC charge at the center of the cube box, Find: A. The Electric Flux on one side of the box B. If another 10µC charge is added on the cube box, what is the Electric Flux on one side of the box. C. The total electric flux on the box