physics practicals
Cards (1)
- Investigating the effect of wire length on resistance:
- attach crocodile clip to the wire level with 0cm on ruler
- attach second clip 10cm away (so you have a bit of wire in between them yk)
- close the switch and record current
- Repeat this for a number of different lengths, moving the crocodile clip 10cm each reading an record current (So like it will go to 10cm, to 20cm etc.)
- Calculate the resistance for each measurement of wire.
- Plot a graph which should be directly proportional. A STRAIGHT LINE :)