How can the magnetism produced by a flowing electrical current be intensified enough to produce useful work?
A) Pass the magnetic field through a magnetic force field amplifier.
B) Coil the conductor around a core of soft iron or steel.
C) Use a conductor with a current gap to create higher current levels.
D) Reduce the amount of current traveling through the wire.
B
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A decrease in the value of the dollar relative to foreign currencies is likely to cause the level of farm imports to ________ and the level of exports to ________.
Fill in the blank(s) with the appropriate word(s).
In order to prevent water contamination, wells used for geothermal heat pump systems are grouted.
Answer the following statement true (T) or false (F)
The sun’s height above the horizon is called ___________.
a. magnetic declination b. azimuth c. altitude d. length
A technician replaced a 1157NA with a 1157A bulb. What is the most likely result?
A) The bulb is brighter because the 1157A candlepower is higher. B) The amber color of the bulb is a different shade. C) The bulb is dimmer because the 1157A candlepower is lower. D) Both B and C