When a positively charged particle moving due east enters a magnetic field, it experiences a magnetic force directed downwards. Which of these is the direction of the magnetic field?     North     South     East     West     Up     Down

When a positively charged particle moving due west enters a magnetic field, it experiences a magnetic force directed due north. Which of these is the direction of the magnetic field? North South East West Up Down

Magnetic field lines point from the north to the south pole. O True O False

True or False ? A current- carrying wire is oriented horizontally (+x) in a magnetic field pointed into the page, the direction of the magnetic force acting on the wire will be towards the bottom of the page (-y)

At New York City, the earth's magnetic field has a vertical component of 5.20 × 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.80 × 10-5 T that points toward geographic north (parallel to the ground). What is the magnitude of the magnetic force on a 7.14-m long, straight wire that carries a current of 46.8 A perpendicularly into the ground? Number Units

An electron moves at a velocity of 3.05 x 10^6 m/s in a direction perpendicular to a magnetic field of strength 4.89 T. How much force will the electron experience? 4.06E-12 N 2.39E-12 N 1.43E-12 N 3.11E-12 N