Question

A group of students measured the interaction force between a wire in a magnetic field and...

A group of students measured the interaction force between a wire in a magnetic field and the magnet responsible for the field using a wire of length 4.0 cm.

They obtained the following results.

Current (mA) Force (N)

−700 −0.0206

−170 −0.0103

520 0.0138

890 0.0241

(a) Analyze the data. (You will not submit this spreadsheet. However, the results will be needed later in this problem.) (i) Enter the above data into an Excel spreadsheet.

(ii) Make a plot of force versus current. (iii) Use the trendline option in Excel to fit the data of force versus current to get the slope.

(b) Report this value below.

slope = 0.2906 A/N Incorrect: Your answer is incorrect. An unknown error occurred. Please try again.

(c) Now, use the length of the wire to determine the strength of the magnetic field B in which the experiment was carried out.

B =

Homework Answers

Answer #1

plotted Force (in N) on Y axis and current (in mA) on X axis in google charts.

Equation of trend line is

(b)

slope is

(c)

Magnetic force is

Magnetic field is

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