A long wire lies in a tangle on the surface of a table, as shown below. When a current is run through the wire as shown, the largest component of the magnetic field at X points
a.
into the table.
b.
out of the table.
c.
parallel to the nearest segment of wire.
d.
antiparallel to the nearest segment of wire.
e.
along a circle which has its center at the center of the overall loop.
b
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A) drops. B) remains unchanged. C) increases as work is done on it. D) none of the above
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a. is an antielectron b. was the first antimatter particle discovered c. is the same as a proton d. all of the above
In most months, there are no eclipses
a. True b. False Indicate whether the statement is true or false
In the H-R diagram, the bright blue-white stars that dominate the naked eye sky lie to the:
A) top left. B) top right. C) middle of the main sequence. D) top center. E) bottom left.