True or false — fields & dipoles

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Electric field lines can never intersect each other.

2. Statement is true

   No

   Statement

   A dipole in a uniform field feels a net force but no torque.

3. Statement is true

   Yes

   Statement

   On the axial line a short dipole's field is twice its equatorial field.

4. Statement is true

   Yes

   Statement

   Any observable charge is an integer multiple of e = 1.6x10^-19 C.

5. Statement is true

   No

   Statement

   Flux through a closed surface depends on charges lying outside it.