5.7 Electric Dipoles

Equal and opposite charges a fixed distance apart, the dipole moment vector, dipoles induced in neutral matter, and the torque an external field exerts.

University Physics Volume 2, 5.7 Electric Dipoles

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3 exercises

5.7 Exercise 10

A charge $q = −2.0 \mu \text{C}$ is released from rest when it is 2.0 m from a fixed charge $Q = 6.0 \mu \text{C} .$ What is the kinetic energy of q when it is 1.0 m from Q?

2.5

5.7 Exercise 16

A positive charge q is released from rest at the origin of a rectangular coordinate system and moves under the influence of the electric field $\overset{\rightarrow}{\text{E}} = E_{0} \left(1 + x / a\right) \hat{\text{i}} .$ What is the kinetic energy of q when it passes through $x = 3 a ?$

2.5

5.7 Exercise 18

Charge is distributed uniformly along the entire y-axis with a density $\lambda_{y}$ and along the positive x-axis from $x = a \text{to} x = b$ with a density $\lambda_{x} .$ What is the force between the two distributions?

2.5