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Resistance of a Wire
Title: Resistance of a Wire
Category: Science & Technology / Biology
Details: Words: 1137 | Pages: 4.8 (approximately 235 words/page)
Resistance of a Wire
A. Planning
Plan of the method to be used: -
The resistivity of nichrome can be determined using the equation ??=?RA/L
Where:
R:- Is the resistance of the wire in ?"ohms" and can be determined using the equation R=V/I where "V" is voltage in volts and "I" is current in
amperes.
L:- Is the length of the nichrome wire used in metres.
A:- Is the cross-sectional area of the wire in metres square …showed first 75 words of 1137 total…
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…showed last 75 words of 1137 total…experiment I found that these lengths gave accurate results and that 8 readings was sufficient enough for me to plot a st. line graph and draw a good line of best fit through the points.
Micrometer screw-gauge: - I decided to measure the diameter of the wire at 3 different positions on the wire. I then calculated the average diameter from the 3 measurements taken to enable me to measure the diameter of the wire as accurately as possible.
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