Questions LLC
Login
or
Sign Up
Ask a New Question
Physics
Electricity and Magnetism
Resistance and Temperature
A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?
1 answer
sorry guys.I did it
You can
ask a new question
or
answer this question
.
Similar Questions
A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at
Top answer:
sorry I did it
Read more.
a resistance of platinum wire is 2 ohm at zero degree and 2.5 at 100 degree.then at what temperature its resistance would be 2.3
Top answer:
is the change linear? If so, then since 2.3 is 3/5 of the way from 2.0 to 2.5, the temperature would
Read more.
If a Wire Resistance is 10 ohm at 0 DegC and the same wire Resistance becomes 15 ohm at temperature 100 DegC, then at what
Top answer:
resistance=Ro(1+.0047T) Ro=10 ohm, given check: R@100=10(1+.0047*100)=10(1+.45)=15ohm
Read more.
The resistance of a platinum
wire at the ice and steam points are 0.75 ohm and 1.05 ohm respectively. Determine the temperature
Top answer:
To determine the temperature at which the resistance of the wire is 0.90 ohm, we can use the formula
Read more.
A copper wire has a resistance of 20 ohm at a temperature of 0 degree celsius and 28 ohm at 100 degree celsius.what is
Top answer:
To find the temperature coefficient of resistivity of copper, we can use the following formula: TCR
Read more.
how much would you have to raise the temperature of a copper wire(originally at 20degree celcius) to increase its resistance by
Top answer:
To find the increase in temperature required to increase the resistance of a copper wire by 15%, we
Read more.
The specific heat capacity of a metal is given as 0.745 J/ degree Celcius.What mass of the metal must be heated to 95 degree
Top answer:
Note the correct spelling of celsius. You have half of it but not the other half. The metal is
Read more.
120 grams of metal at 88 degree celcius is poured into a 70 grams isolated cup contains 250 grams of water at 16 degree celcius.
Top answer:
To determine the specific heat capacity of the metal, we can use the principle of heat transfer,
Read more.
If the resistance of an aluminum wire at room temperature (20°C) is 100 ohm, at what temperature will its resistance increase
Top answer:
To solve this problem, we can use the formula for calculating the temperature coefficient of
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.
Related Questions
A faulty celcius thermometer read 0.7 degree celcius at the melting point of pure ice and 99.5 at the boiling point of water at
the resistance of a platinum resistance thermometer is 200.0 ohm at o degree centigrade and 257.6 ohm when immersed in hot
A 25 gram piece of metal is sitting in a beaker of boiling water. The metal is taken out of the beaker and quickly placed in a
A copper block of mass 100g at a temperature of 150 degree celcius is dropped into a copper calorimeter of 40g containing 80g of
the temperature of 500g of a certain metal is raised to 100 degre celcius and it is then placed in 200g of water at 15 degre
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
What is the diameter of a 1.00 meter length of tungsten wire whose resistance is 0.32 ohm (electrical resistance)?
a jug of heat capacity 250j/kg contains water at 28 degree celsius. an electric heater of resistance 35 holmes connected to 220
Substance A has a melting point of -10 degree celcius and a boiling point of 57 degree celcius. Sunstance B has a melting point
a room with floor measurement 7m by 10m contains air of mass 750kg at a temperature of 34 degree celcius. the air is cold untill
