What happens to a current-carrying wire in a magnetic field? How does orientation of the wire make a difference?
What will be an ideal response?
Properly oriented, a current-carrying wire experiences a force when it is in a magnetic field. The force is proportional to the magnetic field strength, the current in the wire, and the orientation of the wire. When the wire is perpendicular to the magnetic field, force is maximum. When the wire is parallel to the magnetic field, force is minimum—that is, zero. In between parallel and perpendicular, the field varies between minimum and maximum.
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In which of the following regions of the United States would you find the dry, hot grassland climates?
A. The Southeast Coastal Plain B. The Piedmont C. The Great Plains D. The Rocky Mountains
What is "dryland" agriculture?
A) agriculture in dry areas, made possible by irrigation B) agriculture that depends largely on seasonal precipitation to support farming C) agriculture that relies on special, hybridized crops that require almost no water D) agriculture that occurs on oases in land that is otherwise desert E) agriculture that occurs in desert lands, inside a greenhouse with a controlled environment
Large, heavy snowflakes are associated with moist air and temperatures well below freezing
a. True b. False
The strength of an earthquake at its source is measured on the Richter scale
Indicate whether the statement is true or false