- 1). Measure the length of the copper sheet using the tape measure. Make a note of this value.
- 2). Measure the width of the copper sheet using the tape measure. Make a note of this value.
- 3). Measure the thickness of the copper sheet using the tape measure. Make a note of this value.
- 4). Multiply the thickness of the sheet by the width of the sheet. This value represents a cross-section of the sheet in the direction of the length of the sheet.
- 5). Multiply the resistivity of copper by the length of the copper sheet. The value of the resistivity of copper is 1.72x10^-8 ohmmeters. Make a note of this value.
- 6). Divide the value found in Step 5 by the cross-section of the sheet determined in Step 4. This is the resistance of the sheet of copper along the length of the copper sheet.
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