What are the Factors that influence resistance?

Answer 1

Factors that effect resistance are: # Heat- At a higher temperature their will be more resistance as the atoms within the wire begin to swell and make it harder for the current to pass through the wire; this causes more resistance. # Length- As the length increases so does the resistance. This is because there is a larger space for the electrons to jump across and more atoms for them to get through to complete the circuit. # Cross-Sectional area- As the CS area increases the resistance decreases as there are more places for a greater current to travel through. # Material- Different materials have different densities. The denser a material the higher the resistance.

Answer 2

Resistance of electricity is based on many scientific and mathematical factors.

Some basic examples of these are: -

Conductor Type. Some metals are better conductors of electricity than others like iron and aluminum where aluminum is by far a better conductor of electricity and is the most commonly used metal wire that transports electricity to our homes from the power station. Most ceramics and plastics are poor conductors and are therefore called insulators. No Insulator is 100% as a tiny almost immeasurable amount of power still finds it way via impurities or its' general natural conductivity.

Water. Pure water is a relatively non conductive. But also non insular in an open environment. Add the smallest amount of impurities to it, just a speck of dust or grit, and the water changes to a dangerous conductor of electricity. The higher the impurities, such as salt, the less resistance it has.

Conductor Size. Wire is a good example. The thinner the wire, the less power (amperes) it can pass.

Conductor Length. Electrons are lost due to conductive resistance over every part of the length of the wire. This is why you see street Transformers. These boost the "voltage", or speed, of the electrons, but cannot increase the power "Amperes" or volume at the same voltage, without input of an extra power source.

Temperature. Electrons like it cold. The warmer the conductor is, the more excited and less aligned they become and cannot pass their electrons on as efficiently. Think of the game "Tunnel ball" where one person is not in line.

Answer 3

The length and the material that the conductor is made from. Different wire sizes have different ohm/foot. The longer the length of the conductor the higher the ohms/foot. Gold has the best ohms/foot rating. Copper and aluminum are further down the list.

Answer 4

The three factors that affect resistance are: length, cross-sectional area, and resistivity. As resistivity is affected by temperature, then temperature indirectly affects resistance.

Answer 5

Resistance is affected by the length and cross-sectional area of a conductor, together with the resistivity of that conductor. As resistivity is affected by temperature, you can also say that resistance is indirectly affected by temperature.

Answer 6

The material make up of a wire affects its resistance. Other affecting factors include cross sectional area, temperature, and length.

Answer 7

The resistance of a wire increases if the wire gets longer, thinner or hotter.

Note. there are a few materials which increase resistance when they get colder; these are the exception.

Answer 8

1. Length

2. Girth (Thickness)

3. Type (Element)

Thats all I know but i !

Answer 9

Will have an influence on resistance