Current electricity bingo

Exercise and reference answers

Clues and terms

1. Clue

   The constant of proportionality in Ohm's law.

   Item

   Resistance

2. Clue

   The SI unit in which resistance is measured.

   Item

   Ohm

3. Clue

   Depends on the material and on temperature.

   Item

   Resistivity

4. Clue

   Current per unit area, written as j.

   Item

   Current dens.

5. Clue

   Average time an electron goes between collisions.

   Item

   Relaxation

6. Clue

   Slow bias opposite the field, on top of random motion.

   Item

   Drift

7. Clue

   Current in at a junction equals current out.

   Item

   Junction rule

8. Clue

   Potential changes around a closed loop sum to zero.

   Item

   Loop rule

9. Clue

   Balanced when no current passes the galvanometer.

   Item

   Wheatstone

Instructions

Read each clue and tap the term it describes.

Explanation