A heater is made by a 1-m-long, 0.50-mm-diameter nichrome wire. When the wire is connected to a 1.5 V battery, calculate: (a) what is the current in the wire? (b) What is the power of the heater?
A heater is made by a 1-m-long, 0.50-mm-diameter nichrome wire. When the wire is connected to a 1.5 V battery, calculate: (a) what is the current in the wire? (b) What is the power of the heater?
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A heater is made by a 1-m-long, 0.50-mm-diameter nichrome wire. When the wire is connected to a 1.5 V battery, calculate: (a) what is the current in the wire? (b) What is the power of the heater?
![TABLE 22.1 Resistivity of materials
Resistivity
(N• m)
Material
Соpper
1.7 x 10 8
Tungsten (20°C)
5.6 X 108
Tungsten (1500°C)
5.0 x 10-7
Iron
9.7 × 108
-8-
Nichrome
1.5 X 10 6
Seawater
0.22
Blood (average)
1.6
Muscle
13
Fat
25
Pure water
2.4 X 10
Cell membrane
3.6 X 107](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec61610c-382a-4f8e-9761-46135314c956%2Fcb59a146-1de2-4b45-9f00-1bc924394676%2Fqpc0mm_processed.png&w=3840&q=75)
Transcribed Image Text:TABLE 22.1 Resistivity of materials
Resistivity
(N• m)
Material
Соpper
1.7 x 10 8
Tungsten (20°C)
5.6 X 108
Tungsten (1500°C)
5.0 x 10-7
Iron
9.7 × 108
-8-
Nichrome
1.5 X 10 6
Seawater
0.22
Blood (average)
1.6
Muscle
13
Fat
25
Pure water
2.4 X 10
Cell membrane
3.6 X 107
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