Añswer the following question/s: 1. Describe what will happen to the resistance offered by a conductor giver following changes in its properties: Increase in electrical resistivity Decrease in electrical conductivity Lowering of temperature Increase in length Fattening
Añswer the following question/s: 1. Describe what will happen to the resistance offered by a conductor giver following changes in its properties: Increase in electrical resistivity Decrease in electrical conductivity Lowering of temperature Increase in length Fattening
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:C. Answer the following question/s:
1. Discuss what electric current is with respect to how you understand drift
velocity of moving electric charges.
2. In what ways are electron flow and electric current the same? In what ways are
these terms different?
3. How is drift velocity dependent on current density?
D. Solve the following:
1. Calculate the current produced by a charge of 4.15 x 10-17 C that flows for 10 s.
2. Identify how many electrons flow through a lightbulb for each second if the
current through the bulb is 0.75 A.
3. A steady current of 0.75 A flows through a conductor. Determine the number of
charges that passes through the wire in 3 min.
4. Determine the number of electrons that pass per second through a section of
wire carrying a current of 0.8 A.
Transcribed Image Text:A. Answer the following question/s:
1. Describe what will happen to the resistance offered by a conductor given the
following changes in its properties:
Increase in electrical resistivity
Decrease in electrical conductivity
Lowering of temperature
Increase in length
Fattening
2. Describe what will happen to the current flow through a conductor given the
following changes in its properties:
Decrease in electrical resistivity
Increase in electrical conductivity
Increase in temperature
Decrease in length
Thinning
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