Question

Data Table One Angle of Inclination ( ф ) Deflection current (l45) - L-60- 201.5mA Turn on the power supply and adjust the fine voltage settings until the needle of the compass in the galvanometer is deflected by exactly 45 degrees from north. Use the DMM to determine the circuit current. Record this in Data Table One. Q1: The Biot-Savart integral gives the magnetic field at the center of a closed circle. The tangent galvanometer coils have 20 turns and a 7.62cm radius. Calculate the magnitude of the magnetic field at the center of the galvanometer. Show all work with units. Answer in units of micro-Tesla. Q2: The direction of the compass needle before and after the coil current was flowing is shown. The original needle direction as rth x component of the Earth's magnetic field. Label the direction deflected needle direction as Bnet . The needle is deflected by the magnetic field of the coil so that Berthx +Beoil Find Bearthx . microTesla. Q3: This is only the horizontal component of the Earth's magnetic field. Use trigonometry to determine the relationship between the dip angle (ф), the horizontal component Beorthxand the Earth's magnetic field Bol Show all work with units. Answer in microTesla. Original needle component of the Et, crection of the hile Directiorn while current flows Show all work withunits. Answer in unitsof RTHX total Q4: The locally accepted value for B.otal is 46.7 μ T. Show your calculation with units for the percent difference or percent error (as appropriate) between this value and the one obtained in this lab. TOTAL

Answer 1

SU 8 CoiL O2 Coi L 332 83 total Cos Stata 3 fot 21°C、/.