A bar magnet is aligned east–west, with its center 16 cm from the center of a compass (Figure 18.95). The compass is observed to deflect 50° away from north as shown, and the horizontal component of...

A bar magnet is aligned east–west, with its center 16 cm from the center of a compass (Figure 18.95). The compass is

observed to deflect 50° away from north as shown, and the horizontal component of the Earth's magnetic field is known to

be 2 × 10−5 tesla.