1. The conducting loop in the figure is moving into the region between the magnetic poles shown.Is the induced current (viewed from above) clockwise or counterclockwise?A. clockwiseB. counterclockwise
2. Is there an attractive magnetic force that tends to pull the loop in, like a magnet pulls on a paper clip? Or do you need to push the loop in against a repulsive force?
A. You need to push the loop in against a repulsive force.
B. There is an attractive...
1. The conducting loop in the
figure is moving into the region between the magnetic poles
shown.
Is the induced current (viewed from above) clockwise or
counterclockwise?
A. clockwise
B. counterclockwise
2. Is there an attractive magnetic force that
tends to pull the loop in, like a magnet pulls on a paper clip? Or
do you need to push the loop in against a repulsive force?
A.
You need to
push the loop in against a repulsive force.
B.
There...
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.]
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?
A straight, vertical wire carries a current of 1.2 A downward in a region between the poles of a large superconducting electromagnet, where the magnetic field has magnitude 0.588 T and is horizontal . What are the magnitude and direction of the magnetic force on a 1.00cm section of the wire that is in this uniform magnetic field, if the magnetic field direction is:(A) East(B) South(C) 30 degrees S of W
What is the difference between the magnetic field of the
bar magnet and
the magnetic field of the solenoid? (also in terms of
how the lines and direction should differ)
Magnetic field strength decreases as you get farther from the
poles. Does the flux through the face of the coil change as you
move the magnet? Explain your reasoning.
Why does the needle of the Galvanometer deflect when you bring a
magnet in close to the coil? Is the deflection in accordance with
Lenz's Law? Justify your answer in terms of Lenz's Law and your
answer above.
6- Find the latitude and longitude of the location on Earth
precisely opposite the geographic center of the contiguous United
States (Lebanon, Kansas at 39° 50′ N, 98° 35′ W).