Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Physics
Electricity and Magnetism
How does the length, thickness, and temperature of a wire effect the resistance?
1 answer
resistance goes up proportional to length, down proportional to 1/square of diameter, and up with temperature.
You can
ask a new question
or
answer this question
.
Similar Questions
A wire has a resistance of 27.2 ohms. It is melted down, and from the same volume of metal a new wire is made that is 3 times
Top answer:
If it is three times longer, it must have 1/3 the cross sectional area of the original wire. The new
Read more.
A metal wire has a resistance of 8.00Ω at a temperature of 20C. If the same wire has a resistance of 8.40Ω at 70C, what is the
Top answer:
R₀=8 Ω, T₀=20℃, R₁=8.4 Ω, T₁=70℃, T₂ = - 10℃ R₂=? R=R₀[1-αΔT]
Read more.
Which of the following would reduce the resistance of a metal wire?
A. increasing its thickness B. increasing its temperature C.
Top answer:
A. increasing its thickness R=ρL/A A↑=>R↓
Read more.
A certain length of wire has a resistance of 21 ohms. This wire is melted down and from the same volume of material a new wire
Top answer:
To solve this problem, we need to understand the relationship between the length of a wire and its
Read more.
The electrical resistance of a wire waves directly as its length & inversely as the square of its diameter if a wire 30m long
Top answer:
Even not remembering my physics, we can form the equation, since the relationship is given.. R = k
Read more.
A wire P has resistance R. If the wire is stretched and its length is increased by 10%, what would be the percentage change in
Top answer:
Since the density stays the same, the volume (area*length) must stay the same and the cross
Read more.
A wire of length L and cross-sectional area A has resistance R. What will be the resistance R_stretched of the wire if it is
Top answer:
The product L*A remains constant after stretching. If L doubles, A decreases by 1/2 Resistance is
Read more.
Now put this into practice
1 A certain wire has a length of 10 m and a resistance of 600. Calculate the resistance of 20 m of the
Top answer:
1) To calculate the resistance of 20 m of the wire, we can use the formula for resistance:
Read more.
(1).The resistance of wire is giving by the relation Rt=Ro(1 alpha t Bt^2)
T is the temperature alpha & Bt^2(beta) are constant
Top answer:
To find the values of alpha (α) and beta (β) in the given relation: 1. First, we need to plug in
Read more.
he resistance. R. of a wire varies directly as its length and inversely as the square of its diameter. If the resistance of a
Top answer:
We can set up the equation based on the given information: R = k * (L / (d^2)) where R is the
Read more.
Related Questions
activity to demonstrate the fact that for a metallic wire of uniform material density and thickness, the resistance increases
1) a wire of length 1m has a resistance of 2 ohm.obtain the resistance if specific resistance is double,diameter is double and
What is the resistivity or cylindrical material wire whose 1.0m length has a resistance of 2.0 ohms? the diameter of the wire is
A platinum resistance thermometer measures temperature on assumption that the change in the electrical resistance of platinum is
The resistance of a coil copper wire at 20 degree celsius is 2.21 ohms. After a current of 10 amperes has been flowing in wire
A wire of initial length L0 and radius r0 has a measured resistance of 2.5 . The wire is drawn under tensile stress to a new
A piece of wire of a diameter 0.70 mm and length 1m has a total resistance of 2 ohms . Calculate the resistivity of the material
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same
he resistance. R. of a wire varies directly as its length and inversely as the square of its diameter. If the resistance of a
The resistance, R. of a wire varies directly as its length and inversely as the square of its diameter. If the resistance of a
