Chapter 23-26 Solutions.pdf - CHAPTER 23/26: THE ELECTRIC...

CHAPTER 23/26: THE ELECTRIC FIELD
What are the strength and direction of the electric field at the position indicated by the dot in FIgUrE
Ex26.3? Specify the direc-tion as an angle above or below horizontal

An electric dipole is formed from {1.0 nC charges
spaced 2.0 mm apart. The dipole is at the origin,
oriented along the x-axis. What is the electric field
strength at the points (a) (x, y) =(10 cm, 0 cm) and (b)
(x, y) =(0 cm, 10 cm)
The electric field strength 10.0 cm from a very long
charged wire is 2000 N/C. What is the electric field
strength 5.0 cm from the wire?

Two 10-cm-diameter charged rings face
other, 20 cm apart. The left ring is charged
20 nC and the right ring is charged to +20 nC.a.
What is the electric field Eu, both magnitude and
direction, at the midpoint between the two rings?b.
What is the force Fu on a -1.0 nC charge
at the midpoint?
each
to -
placed