College Physics Study Set 7

A proton moving at a speed of 3.8 * 10⁶ m/s cuts across the lines of a magnetic field at an angle of 70.The strength of the field is 0.25 * 10^-4 T.What is the magnitude of the force acting on the proton? (q_p = 1.6 * 10^-19 C)

Electrical charges and magnetic poles have many similarities, but one difference is:

Geophysicists today generally attribute the existence of the Earth's magnetic field to which of the following?

The magnetic pole of the Earth nearest the geographic North Pole corresponds to which of the following?

If a proton is released at the equator and falls toward the Earth under the influence of gravity, the magnetic force on the proton will be toward the:

Which of the following is not a hard magnetic material?

The force on a charged particle created by its motion in a magnetic field is maximum at what angle between the particle velocity and field?

The right-hand rule allows one to find a property of the interaction of a magnetic field with a charged particle. The right-hand rule applied to moving charges:

A proton is released such that its initial velocity is from right to left across this page.The proton's path, however, is deflected in a direction toward the bottom edge of the page due to the presence of a uniform magnetic field.What is the direction of this field?

The dip angle is:

Different units can be used to measure the same physical quantity, differing only by some multiplicative factor. The cgs unit for magnetic field, the gauss, is equal to ________ tesla.

A soft magnetic material has which property?

A stationary positive charge +Q is located in a magnetic field B, which is directed toward the right as indicated.The direction of the magnetic force on Q is:

Assume that a uniform magnetic field is directed into this page.If an electron is released with an initial velocity directed from the bottom edge to the top edge of the page, which of the following describes the direction of the resultant force acting on the electron?

A proton is released such that it has an initial speed of 4.0 * 10⁵ m/s from left to right across the page.A magnetic field of 1.2 T is present at an angle of 30 to the horizontal direction (or positive x axis).What is the magnitude of the force experienced by the proton? (q_p = 1.6 * 10^-19 C)

The magnetic field of the Earth is believed responsible for which of the following?

Which of the following locations has the smallest (in magnitude) magnetic declination?

A proton moves across the Earth's equator in a northeasterly direction.At this point the Earth's magnetic field has a direction due north and is parallel to the surface.What is the direction of the force acting on the proton at this instant?

The term magnetic declination refers to which of the following?

An electron which moves with a speed of 3.0 * 10⁴ m/s parallel to a uniform magnetic field of 0.40 T experiences a force of what magnitude? (e = 1.6 * 10^-19 C)