Question

state the name two metals whose resistance increase with the increasement of pressure

Answer 1

The effect of pressure has been measured on the electrical resistance of fourteen oxides and five sulfides of transition metalions, as well as on four ferrites

 In general, the resistance decreased with increasing pressure at a faster rate for compounds with a high oxygen‐to‐metal ratio than for those with a lower ratio.


For the semiconducting compounds the temperature coefficient of resistivity decreased with increasing pressure, but at a rate which would give metallic conduction only at very high pressures (0.7–2.0 Mbars).


V2O5and CrO3 exhibited phase transitions, but remained semiconducting in the high‐pressure phase. The sulfides showed markedly larger pressurecoefficient of resistance than did the oxides