Question
In: Physics
why does the resistance of a metal vary with its temperature
why does the resistance of a metal vary with its temperature
Solutions
genius_generous answered 2 years agoRelated Solutions
As the temperature of a metal rod varies, so does the resistance and the dimensions of...
As the temperature of a metal rod varies, so does the resistance
and the dimensions of the rod. If a copper rod has a resistance of
4.78 Ω at 20.0°C, determine the resistance of the rod (in Ω) at
120°C by accounting for the changes in both the resistivity and the
dimensions of the rod. The coefficient of linear expansion for
copper is 1.67 ✕ 10−5 (°C)−1 and the temperature coefficient of
resistivity is 4.04 ✕ 10−3 (°C)−1.
Q1) A metal wire has a resistance of 10.0 at a temperature of 20,0 °C. If...
Q1) A metal wire has a resistance of 10.0 at a
temperature of 20,0 °C. If the same wire has a resistance of 12.0
at 90.0 °C, what is the resistance of this wire when its
temperature is –40.0 °C?
Q2) A parallel-plate capacitor filled with air carries
a charge Q. The battery is disconnected, and a slab of material
with dielectric constant k = 2 is inserted between the plates.
Which of the following statements is true?
Why thermistor resistance, thermocouple voltage, platinum resistance are directly proportional to temperature?
Why
thermistor resistance, thermocouple voltage, platinum resistance
are directly proportional to temperature?
When adding heat to a substance at its phase transition temperature, why does the temperature of...
When adding heat to a substance at its phase transition
temperature, why does the temperature of the substance not change?
What is the energy used for?
what material has greater creep resistance and why? metal plastic or ceramic?
what material has greater creep resistance and why? metal plastic
or ceramic?
What are some reasons that business outputs vary? For example why does production output vary? Explain...
What are some reasons that business outputs vary? For example
why does production output vary? Explain the difference between
common causes of variation and special causes of variation.
What are some reasons that business outputs vary? For example, why does production output vary? Explain...
What are some reasons that business outputs vary? For example,
why does production output vary? Explain the difference between
common causes of variation and special causes of variation.
What are some reasons that business outputs vary? For example, why does production output vary? Explain...
What are some reasons that business outputs vary? For example,
why does production output vary? Explain the difference between
common causes of variation and special causes of variation.
Why does the cosmic ray intensity vary a. with altitude and, b. with latitude?
Why does the cosmic ray intensity vary
a. with altitude and,
b. with latitude?
List the parameters that influence temperature during metal cutting, and explain why and how?
List the parameters that influence temperature during metal
cutting, and explain why and how?
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