9. What does it mean If material has a positive temperature coefficient? A. the resistance increases with a decrease in temperature B. the resistance increases with an increase in temperature C. the resistance decreases with a decrease in temperature D. the resistance decreases with an increase in temperature
9. What does it mean If material has a positive temperature coefficient? A. the resistance increases with a decrease in temperature B. the resistance increases with an increase in temperature C. the resistance decreases with a decrease in temperature D. the resistance decreases with an increase in temperature
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Publisher:Raymond A. Serway, Chris Vuille
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![9. What does it mean If material has a positive temperature coefficient?
A. the resistance increases with a decrease in temperature
B. the resistance increases with an increase in temperature
C. the resistance decreases with a decrease in temperature
D. the resistance decreases with an increase in temperature
For items 10–15, refer to the given graph below.
5
Nickel
4
Copper
3
2
Platinum
Image is from https://
circuitglobe.com/resistance-
1
thermometer.html
400
600 800" 1000°
10. Which of the following has higher resistance at approximately 400K?
A. copper
11. Which of the following has higher resistance at approximately 800K?
A. copper
12. Which of the following has higher resistance at approximately 1000K?
A. copper
13. At which temperature does platinum have the resistance of 2 ohms?
B. nickel
C. platinum
D. none
B. nickel
C. platinum
D. none
B. nickel
C. platinum
D. none
A. 400K
B. 600K
C. 800K
D. 1000K
14. At which temperature does cooper have the resistance of 3 ohms?
A. 400K
C. 800K
15. Which solid conductor shows the highest resistance?
C. platinum
B. 600K
D. 1000K
A. copper
B. nickel
D. none](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F90d19025-7d98-4763-9724-335fd9b5d1f5%2Fb26ce1ad-fa8b-4192-bb39-a80af45f1087%2F129ljdf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9. What does it mean If material has a positive temperature coefficient?
A. the resistance increases with a decrease in temperature
B. the resistance increases with an increase in temperature
C. the resistance decreases with a decrease in temperature
D. the resistance decreases with an increase in temperature
For items 10–15, refer to the given graph below.
5
Nickel
4
Copper
3
2
Platinum
Image is from https://
circuitglobe.com/resistance-
1
thermometer.html
400
600 800" 1000°
10. Which of the following has higher resistance at approximately 400K?
A. copper
11. Which of the following has higher resistance at approximately 800K?
A. copper
12. Which of the following has higher resistance at approximately 1000K?
A. copper
13. At which temperature does platinum have the resistance of 2 ohms?
B. nickel
C. platinum
D. none
B. nickel
C. platinum
D. none
B. nickel
C. platinum
D. none
A. 400K
B. 600K
C. 800K
D. 1000K
14. At which temperature does cooper have the resistance of 3 ohms?
A. 400K
C. 800K
15. Which solid conductor shows the highest resistance?
C. platinum
B. 600K
D. 1000K
A. copper
B. nickel
D. none
![Assessment
Directions. Choose the letter that corresponds to the best answer and write it on a
separate sheet of paper.
1. Which of the following is the unit for temperature?
A. Ampere
B. Kelvin
C. Ohm
D. Voltage
2. What is the relationship of temperature and resistance of a conductor?
A. stay the same
B. no relationship
3. What effect does colder temperature have on resistance?
A. no effect
C. directly proportional
D. inversely proportional
C. increase resistance
D. decrease resistance
B. stays the same
4. What does the effect of temperature on the resistance of an insulator increase?
A. no effect
B. opposite effect
C. positive temperature coefficient
D. negative temperature coefficient
5. The resistance of a metallic conductor decreases with temperature due to?
A. change in carrier density
B. change in the dimension of the conductor
C. decrease in the number of collision s among carriers
D. decrease in the rate of collisions between carriers and the vibrating atoms
6. For the materials to have a high electrical resistance, what temperature is needed?
A. high
7. With the decrease in temperature, the insulating property of the material?
A. gains
B. weakens
B. less C. negative
D. positive
C. no effect
D. remains unchanged no effect
8. Which of the following has a positive temperature coefficient?
B. plastic
C. rubber
A. copper
D. silicon
12](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F90d19025-7d98-4763-9724-335fd9b5d1f5%2Fb26ce1ad-fa8b-4192-bb39-a80af45f1087%2Fvbbnh2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Assessment
Directions. Choose the letter that corresponds to the best answer and write it on a
separate sheet of paper.
1. Which of the following is the unit for temperature?
A. Ampere
B. Kelvin
C. Ohm
D. Voltage
2. What is the relationship of temperature and resistance of a conductor?
A. stay the same
B. no relationship
3. What effect does colder temperature have on resistance?
A. no effect
C. directly proportional
D. inversely proportional
C. increase resistance
D. decrease resistance
B. stays the same
4. What does the effect of temperature on the resistance of an insulator increase?
A. no effect
B. opposite effect
C. positive temperature coefficient
D. negative temperature coefficient
5. The resistance of a metallic conductor decreases with temperature due to?
A. change in carrier density
B. change in the dimension of the conductor
C. decrease in the number of collision s among carriers
D. decrease in the rate of collisions between carriers and the vibrating atoms
6. For the materials to have a high electrical resistance, what temperature is needed?
A. high
7. With the decrease in temperature, the insulating property of the material?
A. gains
B. weakens
B. less C. negative
D. positive
C. no effect
D. remains unchanged no effect
8. Which of the following has a positive temperature coefficient?
B. plastic
C. rubber
A. copper
D. silicon
12
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