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The lead of a power tool has a copper core of area 11… | StemPy Lab
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The lead of a power tool has a copper core of area 11 mm². The tool draws 18 A through the lead. Find the current density in the core.
Physics
Medium
High School (11–12)
Electricity & Magnetism › Current Electricity
Board Exam
AP
A-Level
IB
Created by
StemPy Lab
The lead of a power tool has a copper core of area
11
mm
2
11\ \text{mm}^2
11
mm
2
. The tool draws
18
18
18
A through the lead. Find the current density in the core.
1.98
×
10
8
A/m
2
1.98 \times 10^{8}\ \text{A/m}^2
1.98
×
1
0
8
A/m
2
1.64
×
10
6
A/m
2
1.64 \times 10^{6}\ \text{A/m}^2
1.64
×
1
0
6
A/m
2
6.11
×
10
5
A/m
2
6.11 \times 10^{5}\ \text{A/m}^2
6.11
×
1
0
5
A/m
2
1.64
A/m
2
1.64\ \text{A/m}^2
1.64
A/m
2
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