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What are the Factors that determine resistance value of electrical material?
The factors that determine resistance are thickness, length, temperature, and the conductivity of the resistance of an object
How does an object length affect its electrical resistance?
Assuming constant cross section, the resistance is directly proportional to the length.
Describe how the resistance of a material is determined?
Resistance is measured in ohms and the amount of resistance that allows one ampere of current to flow when one volt is applied is one ohm.
Some electrical appliances perform quite unsatisfactory when long extension cords are used Why?
Wire has resistance to current flow. The more wire the more resistance.
Which is an example of a superconductor?
A superconductor is a material with extremely low resistance to an electrical current. Many are metals or the like which have been supercooled to temperatures approaching absolute zero. Examples are mercury, lead and tin
Is electrical resistance and electrical resistivity the same?
No. Resistivity is a material property, and is defined as the resistance for a piece of material of some standard size.
A material that has no electrical resistance?
That's a "superconductor".
What is the meaning of electrical resistance?
Definition Of Resistance In Electrical:Property of a material to oppose the flow of electric current through it is called Resistance.
Does material composing the body effect the electrical resistance of a body?
Yes.
Why is electrical resistivity important to a design engineer?
electrical resistance increases current flow decreases.so to know the current flow in the network ,electrical resistance is required.AnswerResistivity is important, because it is one of the three factors that affect the resistance of a material. The other factors are the length and cross-sectional area of the material.
What are the Factors that determine resistance value of electrical material?
The factors that determine resistance are thickness, length, temperature, and the conductivity of the resistance of an object
When current passes through a conductor what makes the conductor heat up?
The electrical resistance of the material. All materials have some electrical resistance except for superconductors.
Does resistance flow through a circuit?
No. Resistance does not flow. Resistance is the characteristic of a material that resists the movement of electrons and thus the flow of electrical current.
Electrical resistance in a wire depends on the wire's?
It's dependent on the wire's composition. That is, what material it is made of. <<>> The electrical resistance in a wire depends on the wire's length and cross sectional area.
What is insulating material used for?
insulating materials have low thermal/electrical conductivity values and hence can be used in applications where resistance to heat or resistance to the passage of electrical current is required.
What is resistivity of material?
the electrical resistance of a conductor through unit cross-sectional area per length is called "resistivity of material"
What is the definition of specific resistance?
The electrical resistance offered by unit length and unit cross section of a material when a known voltage is applied at its ends.
