Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. They may cross
   2. Start at plus
   3. End at minus
   4. Continuous curves

   Odd item

   They may cross

2. Items

   1. Equal charges
   2. Opposite signs
   3. Set 2a apart
   4. Any closed surface

   Odd item

   Any closed surface

3. Items

   1. Zero flux
   2. Zero charge inside
   3. Gauss law
   4. Dipole centre

   Odd item

   Dipole centre

4. Items

   1. Conservative field
   2. No closed loops
   3. Unique direction
   4. Total charge q

   Odd item

   Total charge q

Instructions

Tap the item that does not belong with the rest.

Explanation