1. Define magnetic north, geographic north, magnetic declination
and magnetic inclina- tion.
2. What features of...
1. Define magnetic north, geographic north, magnetic declination
and magnetic inclina- tion.
2. What features of a solenoid change the magnetic field strength?
What is the equation for the magnetic field of a solenoid?
An electron is moving north; what direction should a magnetic
field be oriented, so the magnetic force on the electron just
balances the gravitational force?
A square loop is in the x-y plane, with its top and bottom
parallel with the x-axis, and its sides parallel with the y-axis.
It carries a clockwise current when viewed from the positive
z-axis. There is a constant magnetic field
pointed in the x-axis direction. What are then
directions of the magnetic forces on the four...
3) What is the North-South Gap? Describe 3 of the features of
the North-South Gap. What are the proximate and underlying causes
of the North-South Gap? What, if anything, should lesser-developed
countries be doing to improve their economic status?
Define what is meant by a product and by a geographic market.
Assume that thereare five firms in the market, each with 20 % of
total sales. If two of these firms wanted to merge, would they be
allowed to do so under the 2010 Merger Guidelines by the Department
of Justice? Why?
1)What are the features of a scattergram?2) What is a correlation coefficient and what it measures?3) What can its values be? And what do those values mean as far as
weak and strong, negative and positive, and none.4) Given these four images (a), (b), (c), (d) make a prediction
about what you think the correlation coefficient might be and
justify why.
You are designing magnetic motors. A colleague1 insists that
like magnetic poles attract— north poles attract north poles and
south poles attract south poles. You feel the need to remove this
idea from his head. You possess three unlabeled bar magnets (that
is, you don’t know which ends are N or S). Surely that will be
enough. . . [Bonus points for writing this as a dialogue. Extra
bonus points for writing this in iambic pentameter.]
A proton experiences no magnetic force if it travels in the
direction of 30 degrees North of East.
It will experience 8x10-17 N magnetic force directed
downward into the ground if it travels due east at 1000 m/s.
Find the magnitude and direction of the magnetic
field.
True/False
1) A wire carrying current due east in a magnetic field is
deflected due north. The magnetic field must have a component that
points into the ground
2) The self-inductance of a solenoid depends on the geometry of
the solenoid and is independent of the current flowing through
it
3) A horizontal bar that is oriented east to west is pulled
vertically upward through a magnetic field that points due north.
The east end of the bar is at...