Primary Factors:
For a simple system like an electrical wire, there are three major things which will affect the electric resistance.
1. Resistance of wire conductor depends upon the material of which it is made.
2. Resistance of wire conductor is directly proportional to its length.
3. Resistance of a wire conductor is inversely proportional to its area of cross-section. (At least for low frequency voltage.)
Additional:
In general every material has a characteristic electrical conductivity (and resistivity) which determines how well it will conduct electricity. Metals have very high conductivities and insulators very low. The geometry of an object affects the resistance with the above-mentioned wire geometry being the most important example.
In general the type of material and the geometry are the primary factors in determining the resistance of an object, but there are other effects worth mentioning.
Temperature can change electrical properties of a material and there are some dramatic examples such as superconductors. Semiconductors can also have important temperature dependent properties. For most generic materials there is a rise in resistance with an increase in temperature but the effect is not usually large.
More exotic phenomena also exist, such as the change in resistance due to a magnetic field or nonlinear conductors which do not have a fixed resistance but rather have a resistance that depends on voltage. Conductivity through a gas is a dramatic example of the latter.
Temperature is the only factor which affects resistivity...
Apart from that the resisitivty will stay constant even if you change the dimensions of the sample of material
Resistance, or electrical resistanceResistance, or electrical resistanceResistance, or electrical resistanceResistance, or electrical resistance
Sugar is not used in electrical circuits.
The symbol representing resistance in electrical information is the last letter of the Greek alphabet omega.
Electrical resistance, measured in Ohms
Good examples of electrical resistance would be an electrical baseboard heater, electric hot water tank and an electrical kettle. All of these devices use a resistive element to create heat.
There are really only three things that affect electrical resistance. They are the length and cross-sectional area of a conductor and its resistivity. However, resistivity depends not only on the material from which the conductor is manufactured, but upon its temperature. So you could say that temperature indirectly affects resistance via its resistivity.
an ohm meter OR multimeter is used to measure the electrical resistance...
Resistance, or electrical resistanceResistance, or electrical resistanceResistance, or electrical resistanceResistance, or electrical resistance
Resistance is directly proportional to the resistivityand length of a material, and inversely-proportional to its cross-sectional area. It should also be noted that its resistivity is affected by temperature, so temperature indirectly affects resistance.
Unless the wire is broken, a bent wire should still be able to conduct electricity as well as a straight one.
electrical resistance was discovered by Georg Ohm in the late 1820's.
Electrical resistance is measured in Ohms.
air resistance affects
Conductors have a (low) Electrical resistance.
High resistance means insulation
Rheostat is the name of an instrument used to vary electrical resistance.
I believe from Carson's equations that the electrical resistance of dirt isrd = 0.09530 Ohms / mile