Solderless Breadboards, Open-circuits and Short-circuits.

1. Same row same side. (very low resistance.)

2. Same row opposite side.( Infinity resistance.)

3. Different row opposite side. (Infinity resistance.)

4. Different row opposite side connected with jumper wire. (very low resistance.)

Last Problem we did (The answer was 20V)

The result is that 1, short circuit  2, open circuit 3, open circuit   4, short circuits.