electrical resistance
1. The high-resistance paper has a resistivity of 1:25 Ωm. Howdo your values compare? What
are possible causes for discrepancies between the known value andyour calculated values?
Resistivity measurements
| Measured resistance | Length | Width | Cross-sectional area | Resistivity |
| (Ω) | (m) | (m) | (m2) | (Ω·m) |
1 | 18.6 | .052 | .015 | .00078 | .000134 |
2 | 17.5 | .076 | .02 | .00152 | .001151 |
3 | 52. | .10 | .01 | .001 | .001300 |
4 | | | | | |
5 | | | | | |
6 | | | | | |
** thickness = .25 mm
2. What are possible causes for discrepancies between theoreticaland measured values of resistors in series and in parallel?
3. When it is practical to connect resistances in series and whenin parallel?
