A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2...
A wire 3.00 m long and 0.450 mm2 in cross-sectional
area has a resistance of 40.2 Ω at 20.0°C. If its resistance
increases to 40.9 Ω at 27.5°C, what is the temperature coefficient
of resistivity?
(°C)−1
Homework Answers
Add Answer to:
A wire 3.00 m long and 0.450 mm2 in cross-sectional
area has a resistance of 40.2...
A wire 2.60 m long with a cross-sectional area of 7.07x10-6 m2 is connected to a...
A wire 2.60 m long with a cross-sectional area of 7.07x10-6 m2 is connected to a 30.0 V power supply. If a current of 12.0 A is measured in the wire, a) what is the resistivity of the wire in ohm-meters? Answer in scientific notation. b) If this resistivity had been measured at 20.0 °C, what temperature, in Celsius, would we need to heat/cool the wire to for the resistance to be 4.25 Ω if the temperature coefficient of resistivity...
of the A wire 3.00 m long and 0.450 mm2 in c of 38 Ω at...
of the A wire 3.00 m long and 0.450 mm2 in c of 38 Ω at 20°C. If its to 38.5 0 at 28.0°C, what is the of C-1 A toaster rated at 1025 W operates on a 120 v What is the I area of the wire? m2
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x...
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x 10-6 m2, is measured at different temperatures starting at 20.0 oC and ending at 70.0 oC. The given table shows those resistances as a function of temperature differences from the initial temperature. Generate an accurate plot of the resistance as a function of DT. Determine the resistivity of copper from your plot and compare to the accepted value for copper’s resistivity. Determine the temperature...
An aluminum rod that is 3.04 mm long with a cross-sectional area of 1.28 mm2 is used for a digital thermometer.
OsuniPhys1 26P071 An aluminum rod that is 3.04 mm long with a cross-sectional area of 1.28 mm2 is used for a digital thermometer. (a) what is the resistance (in Ω) at room temperature? (Assume room temperature is 20.0°C) (b) What is the resistance (in 0) at body temperature? (Assume body temperature is 37.00℃.)
1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What...
1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What is the resistance if the same amount of material is used to make a wire triple as long? 2. What is the resistance of 15 m length of household no. 14 copper circular wire having a diameter of 1.6 mm? (Hint: the resistivity of copper – textbook, page 782)
1. What is the resistance of a 450 m long copper wire that has a cross-sectional...
1. What is the resistance of a 450 m long copper wire that has a cross-sectional area of 3.00 x 10–6 m2?
A wire is 0.79 m long and 0.77 mm2 in cross-sectional area. It carries a current...
A wire is 0.79 m long and 0.77 mm2 in cross-sectional area. It carries a current of 4.1 A when a 2.0 V potential difference is applied between its ends. Calculate the conductivity ? of the material of which this wire is made.
A wire is 0.79 m long and 0.82 mm2 in cross-sectional area. It carries a current...
A wire is 0.79 m long and 0.82 mm2 in cross-sectional area. It carries a current of 3.8 A when a 2.4 V potential difference is applied between its ends. Calculate the conductivity σ of the material of which this wire is made.
A wire is 1.3 m long and 0.93 mm2 in cross-sectional area. It carries a current...
A wire is 1.3 m long and 0.93 mm2 in cross-sectional area. It carries a current of 5.8 A when a 1.8 V potential difference is applied between its ends. Calculate the conductivity σ of the material of which this wire is made.
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area...
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area of 20-gauge wire is 0.5176 mm2. Resistivity for ("calculator" notation, in ohm*meter) - aluminium: 2.65 e-8 copper: 1.72 e-8 gold: 2.24 e-8 iron: 9.71 e-8 nichrome: 1.00 e-6 platinum: 1.06 e-7 silver: 1.59 e-8 tungsten: 5.65 e-8
of the A wire 3.00 m long and 0.450 mm2 in c of 38 Ω at 20°C. If its to 38.5 0 at 28.0°C, what is the of C-1 A toaster rated at 1025 W operates on a 120 v What is the I area of the wire? m2
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago