I= 3.10 AAngle= 45 degrees D= 2.2cm

Q3. i. [1.5 pts] Use your measurements from part E to calculate the strength of the Earth's magnetic field, disregarding any uncertainties. Show the steps. ii. [1.5 pts] Report the uncertainties of all the directly measured quantities used in the calculation above for the Earth's magnetic field and justify how you determined those uncertainties. iii. [1.5 pts] Propagate the uncertainties reported above to obtain the uncertainty of the calculated value of Earth's magnetic field. Report the calculated Earth's magnetic field, properly rounded with uncertainty. iv. [1.0 pts] Look up the range of magnetic field strengths at the surface of the Earth (online is fine, cite your source). Explain whether your measurements are consistent with this expected range