A charged nonconducting rod, with a length of 2.52 m and a cross-sectional area of 4.76 cm², lies along the positive side of an x axis with one end at the origin. The volume charge density p is charge per unit volume in coulombs per cubic meter. How many excess electrons are on the rod if p is (a) uniform, with a value of -4.66 µC/m², and (b) nonuniform, with a value given by p= bx², where b = -2.18 µC/m²? (a) Number i (b) Number i Units Units

A charged nonconducting rod, with a length of 2.52 m and a cross-sectional area of 4.76 cm², lies along the positive side of an x axis with one end at the origin. The volume charge density p is charge per unit volume in coulombs per cubic meter. How many excess electrons are on the rod if p is (a) uniform, with a value of -4.66 µC/m², and (b) nonuniform, with a value given by p= bx², where b = -2.18 µC/m²? (a) Number i (b) Number i Units Units

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Your answer is partially correct. The ammonia molecule NH3 has a permanent electric dipole moment equal to 1.47 D, where 1 D-1 debye unit-3.34 x 10-30 C-m. Calculate the electric potential in volts due to an ammonia molecule at a point 46.7 nm away along the axis of the dipole. (Set V-0 at infinity.) Number 2.26E-5 Units V
RC-2 A half ring of charge lies in the x-z plane with its center at the origin as shown to the right. There are λ coulombs per meter of charge evenly distributed along the ring, which has radius 'a'. a) Sketch on your paper figures like the figures shown to the right. On your figures show an arrow representing the electric field at the point P that is produced by source charge element dq. I TI Cul 3D view: zl (C/m) X a b View looking from point P toward the origin: y
A sphere of radius R1 = 0.310 m and uniform charge density –70.5 µC/m³ lies at the center of a neutral, spherical, conducting shell of inner and outer radii R2 = 0.593 m and R3 = 0.690 m, respectively. Find the surface charge density on the inner and outer surfaces of the shell. inner surface charge density: µC/m? outer surface charge density: µC/m? R1 R2 R3
RC-2 A half ring of charge lies in the x-z plane with its center at the origin as shown to the right. There are λ coulombs per meter of charge evenly distributed along the ring, which has radius 'a'. a) Sketch on your paper figures like the figures shown to the right. On your figures show an arrow representing the electric field at the point P that is produced by source charge element dq. b) Use Coulomb's law to calculate the magnitude of the x, y and z components of the total electric field at P due to the half ring of charge. If any component is equal to zero, you may use the symmetry argument to explain why it is zero instead of doing the calculations. 3D view: ZI (C/m) X dq b View looking from point P toward the origin: Z dq 0
Review Coulomb's Law in your text. Suppose a small ball has charge -3.8 PC is located at the origin, and a second small ball has charge 8.0 PC is located along the x-axis at +7.5 cm. if you need more help, try this (a) What is the x-component of the force on the ball at the origin? Be sure to use the correct sign to represent the direction of the component,+ for "to the right",- for "to the left". 48 64 N (b) What is the x-component of the force on the ball located at 7.5 cm? 4864N (c) Suppose that the second ball at 7.5 cm has charge -8 PC. In this case, what is the x-component of the force on the ball at the origin? (d) The ball is small if its diameter is much less than the separation of the two balls. In this case a ball with diameter 1 mm would be considered small. Such a ball made of ordinary materials would have a mass of no more than 0.01 g. What would the magnitude of the gravitational force of the earth be on such a ball? (Compare the electric and gravitational forces and you…
Three charged particles are at the corners of an equilateral triangle as shown in the figure below. (Let q = 2.00 μc, and L = 7.00 με 60.0° L 0.650 m.) q -4.00 μC x (a) Calculate the electric field at the position of charge q due to the 7.00-μC and -4.00-μC charges. -10636.7 Once you calculate the magnitude of the field contribution from each charge you need to add these as vectors. KN/CI + 128963 Think carefully about the direction of the field due to the 7.00-μC charge. KN/C ĵ (b) Use your answer to part (a) to determine the force on charge q. -21.3 If you know the electric field at a particular point, how do you find the force that acts on a charge at that point? mN I + 257.9 Check units carefully. Note that the field in part (a) is given in KN/J and the force in this part is given in mN. mN ĵ ×
1. Which material is a better conductor of electricity? (a) Metals (b) Ceramics (c) Polymers (d) composite 2. Which material tends to present lower density? (a) Metals (b) Ceramics (c) Polymers (d) composite 3. Electron sea exists in (a) Hydrogen bond (b) lonic bond (c) Covalent bond (d) Metallic bond 4. Burger's vector changes with (a) Kind of dislocation (b) Length of dislocation (c) Both kind and length of dislocation (d) None 5. Metals are malleable and ductile because (a) Metals can be shine (b) Metals produce sound (c) Layers of metal atoms can slip over each other (d) Opaque. 6. Effective number of atoms in a face centered cubic (FCC) unit cell is equal to (a) 4 (b) 1 (c) 8 (d) 2 7. Lead is a metallic crystal having a structure. (a) FCC (b) ВСС (c) HCP (d) Sc 8. Amorphous solids have structure. (a) Regular (b) Linear (c) Irregular (d) Crystal 9. Percentage of free space in a body center cubic (BCC) unit cell is. (a) 30 (b) 32 (c) 28 (d) 20 10. Fiberglass is an example of (a)…
• Q/ Given the surface charge density, ps =2.0 µC/m2 , existing in the region p <1.0 m, z = 0, and zero elsewhere, find E at P (p = 0, z = 1.0) and write a MATLAB program to verify your answer. . P(p=0, z =1) p=1.0
A 4.0-nm-diameter protein is in a 0.050 M KCl solution at 25° C. The protein has 9 positive and 20 negative charges. Model the protein as a sphere with a uniform surface charge density. Part A What is the electric potential of the protein at the surface? Express your answer with the appropriate units. μA ? Vsurface = Value Units Submit Request Answer Part B What is the electric potential of the protein 2.0 nm from the surface? Express your answer with the appropriate units. με V2 nm = Value Units Submit Request Answer
Three charged particles are at the corners of an equilateral triangle as shown in the figure below. (Let q 7.00 με 60.0° L = 2.00 μc, and L = 0.650 m.) q -4.00 μC x (a) Calculate the electric field at the position of charge q due to the 7.00-μC and -4.00-μC charges. KN/CI + KN/C ĵ (b) Use your answer to part (a) to determine the force on charge q. mNI + mN ĵ
A single square loop of wire is placed in the center of a large solenoid as shown. The solenoid has a radius 5.00 cm and the square loop is 3.0 cm on a side. The solenoid is 0.20 cm long and wound with 200 turns of wire. If the current in the solenoid is 3.00 A, what is the flux through the square loop? If the current in the solenoid drops to zero in 0.500 seconds, what is the magnitude of the average induced emf in the square loop?
2. The 2.50 µC point charges are located on the x-axis. One is at x = 1.00 m, and the other is at x= -1.00 m. (a) Determine the electric field on the y-axis at y = 0.500 m. (c) Calculate the electric force on a -3.50 µC charge placed on the y-axis at y = 0.500 m.