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Chapter 23: Q. 3 (page 653)
The electric field strength from a very long charged wire is . What is the electric field strength from the wire?
The electric field strength at from the wire is.
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A plastic rod with linear charge density is bent into the quarter circle shown in FIGURE. We want to find the electric field at the origin.
a. Write expressions for the - and -components of the electric field at the origin due to a small piece of charge at angle .
b. Write, but do not evaluate, definite integrals for the - and -components of the net electric field at the origin.
c. Evaluate the integrals and write in component form
A small glass bead charged to is in the plane that bisects a thin, uniformly charged, -cm-long glass rod and is from the rod’s center. The bead is repelled from the rod with a force of. What is the total charge on the rod?
Three charges are placed at the corners of the triangle in FIGURE The charge has twice the quantity of charge of the two - charges; the net charge is zero. Is the triangle in equilibrium? If so, explain why. If not, draw the equilibrium orientation.
Rank in order, from largest to smallest, the electric field strengths to at the five points inFIGURE . Explain.
Twodiameter charged rings face each other,apart. Both rings are charged to. What is the electric field strength at (a) the midpoint between the two rings and (b) the center of the left ring?
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