Assignment

1. Calculate the moment of inertia when a magnet of dimensions 3 cm × 1 cm is used to calculate the time period of a vibration magnetometer. Also, calculate the value of mBH.
2. Use a 5 cm × 2 cm bar magnet to calculate the magnetic moment (m) of the bar magnet and the horizontal intensity of the Earth’s magnetic field (BH). Calculate the values of mBH using a vibration magnetometer and m/BH using a deflection magnetometer at Tan A position.
3. Calculate and compare the value of m/BH for a 4 cm × 2 cm bar magnet using a deflection magnetometer at Tan A, Tan B, and Tan C positions, and hence calculate the horizontal intensity of the magnetic field (BH).
4. Find out the Earth’s magnetic field intensity (BH) when a 6 cm × 3 cm magnet is used.
5. Use a 7 cm × 2 cm bar magnet to calculate the moment of the bar magnet (m) and the horizontal intensity of the Earth’s magnetic field (BH). Calculate the values of mBH using a vibration magnetometer and m/BH using a deflection magnetometer at Tan B position.