Author Question: Earth's magnetism arises from A) charged particles at rest on Earth's surface and on clouds in ... (Read 69 times)

kellyjaisingh · **on:** Jul 29, 2018

Earth's magnetism arises from

A) charged particles at rest on Earth's surface and on clouds in the lower atmosphere.
B) the Wizard of Oz.
C) electric currents in Earth's interior.
D) electric currents in the sun.
E) electric currents in the upper atmosphere.

Question 2

A doubly charged ion (charge 2e) with velocity 6.9 106 m/s moves in a circular path of diameter 60.0 cm in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion? (e = 1.60 10-19 C)

A) 11 10-27 kg
B) 6.7 10-27 kg
C) 4.5 10-27 kg
D) 3.3 10-27 kg
E) 8.2 10-27 kg