Table of Contents
What is the lowest resistance metal?
Element silver has lowest resistivity and hence has higher conductivity. Resistivity – Resistivity is equal to the resistance of a given conductor having a unit volume.
Which type of material has the lowest resistance?
The Resistivity of Various Materials A material with low resistivity means it has low resistance and thus the electrons flow smoothly through the material. For example, Copper and Aluminium have low resistivity. Good conductors have less resistivity.
Which conductor has lowest resistance?
Electricity can flow through nonmetals as well (e.g., wood, plastic, rubber and glass), but resistance is much lower in metals such as silver and gold. Even though gold and silver have low resistances, they are too expensive in most cases to be applied in any form other than plating.
Which metal is the highest resistance?
Types
| Material | Resistivity (ohm-cmil/ft) | Resistivity (10−6 ohm-cm) |
|---|---|---|
| Nichrome V | 650 | 108.1 |
| Nickel | 41.69 | 6.93 |
| Platinum | 63.16 | 10.5 |
| Stainless steel (304) | 541 | 90 |
Which has higher resistance thick or thin wire?
The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .
What has the highest resistivity?
Nichrome has the highest resistivity and shows the heating effect of electric current because of its high resistance, it opposes the flow of current and hence, it produces a lot of heat.
Which has more resistance carbon or copper?
The fundamental resistances of small copper nanowires (∼60 nm diameter) are found to be larger than those predicted by Ohm’s law. We find that the resistance of carbon nanotube bundles is smaller than that of the copper wires for dimensions below 60 nm.
Which is metal has lowest value of resistivity?
Silver is the only metal that has the lowest resistance. The electrical resistivity (10.E-8 Ohm.m) for silver is 1,6. What is the difference between AC resistance value and DC resistance value?
Which is more useful high conductivity or low resistivity?
Low Resistivity or High Conductivity of Conducting Material. Material having low resistivity or high conductivity are very useful in electrical engineering for manufacturing electrical engineering machines or equipment’s.
What is the typical resistance of a contact?
Consider a small region in the vicinity of the contact. So the contact resistivity would have units of !·m2. ( or !·cm2or !·mm2.) Typical values would range from 10–3to 10–8!·cm2
Which is the most electrical resistive material in the world?
Table of Electrical Resistivity for Common Materials Bismuth 1.3 x 10 -6 Brass ~0.6 – 0.9 x 10 -7 Cadmium 6 x 10 -8 Cobalt 5.6 x 10 -8