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- 7) A wire with 4 meters length and constant charge density lambda = 4nC/m is placed diagonally on x-y plane. One end is at the origin and it makes 45 degrees with the x-axis. Find the integral expression for Ex at x=7 y=10arrow_forward(1 )Region one z>0 consist of dielectric medium (er=4) (2)Region two z<0 consist of perfect conductor. Determine D&E at point (3,2,-3) and point (2,-1,3), if the surface charge on the conductor is equal to 8nc/m?arrow_forwardA spherical metallic object with a hole inside initially holds a net charge of 94.9 nC; the hole is initially charge-free. Then a particle with a charge of 26.1 nC is placed at the center of the hole (held by a perfect non-polarizable insulating material). The value of the net charge on the outer surface of the conductor, upon reaching electrostatic equilibrium, is most nearly (A) –68.8 nC. (B) –121 nC. (C) 68.8 nC. (D) 42.7 nC. (E) 121 nC.arrow_forward
- 35 SSM In crystals of the salt cesium chloride, cesium ions Cs+ form the eight corners of a cube and a chlorine ion Cl is at the cube's center (Fig. 21-36). The edge length of the cube is 0.40 nm. The Cst ions are each deficient by one electron (and thus each has a charge of +e), and the Cl- ion has one excess electron (and thus has a charge of -e). (a) What is the magnitude of the net electro- static force exerted on the Cl ion by the eight Cs ions at the cor- ners of the cube? (b) If one of the Cs* ions is missing, the crystal is said to have a defect; what is the magnitude of the net electrostatic force exerted on the Cl- ion by the seven remaining Cs+ ions? Cs+ 0.40 nmarrow_forwardA wire with 4 meters length and constant charge density lambda = 4nC/m is placed diagonally on x-y plane. One end is at the origin and it makes 45 degrees with the x-axis. Find the integral expression for Ex at x=7 y=10 (Please help as soon as available. Thank you very much in advance)arrow_forwardTwo parallel conducting plates are seperated by 1.0 mm and carry equal but opposite charge densities. If the difference between them is 2.0 V, what is the magnitude of the surface charge density on each plate?arrow_forward
- Point charges Q are distributed throughout an infinite slab of width W located over –arrow_forwardProblem 4) A large dielectric plate of thickness a is lying in the x-y plane. The charge density of the conductor varies along the z position according to the following equation: p(z) = Po(1 + z?) for -arrow_forward*39 SSM In Fig. 23-49, a small, nonconducting ball of mass m = 1.0 mg and charge q = 2.0 x 10-8C (distributed uniformly through its vol- ume) hangs from an insulating thread that makes an angle 0 = 30° with a vertical, uniformly charged nonconducting sheet (shown in cross sec- tion). Considering the gravitational force on the ball and assuming the sheet extends far vertically and into and out of the page, calculate the surface charge density o of the sheet. m.arrow_forwardTwo identical beads each have a mass m and charge q. When placed in a hemispherical bowl of radius R with frictionless, nonconducting walls, the beads move, and at equilibrium, they are a distance d apart (as shown). (a) Determine the charge q on each bead. (b) Determine the charge required for d to become equal to 2R.arrow_forwardThe surfaces of a lipid bi-layer forming the membrane around a cell with a radius of 1.2 µm has a residual charge qr = 9x10-15 C on outside of the bi-layer, and the same amount of negative charge on the inside. What is the force in pN (×10-12 N) on a singly-charged positive ion (q =1.6 x10-19 C) located on the outer surface of this membrane? Hint: Use F = q E = q (o/e) with o = qr/A = qr/ (4Tt r²) and ɛ, = 8.85 x 10-12 F-m-1. Answer: 8.99180 Farrow_forwardA surface charge density is on a long straight metallic with a radius of a. (a) What is the voltage ∆V(r) inside and outside the pipe, relative to its surface? Hint: use the integral form of potential difference, ∆V = ∫E•dl. (b) Sketch a plot of the voltage for 0 < r < 5a.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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