According to the electron theory of magnetism, electrons produce a magnetic field as they spin.
Answer the following statement true (T) or false (F)
True
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Referring to the following figure, technician A says that a loose connection at the left dash panel ground stud could prevent the low air lamp from illuminating and the audible alarm from sounding when air in the brake systems is low. Technician B says that an open circuit 11-GD could cause the low air lamp to illuminate. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
An electronic package in the shape of a sphere with an outer diameter of 100 mm is placed in a large laboratory room. The surface emissivity of the package can assume three different values (0.2, 0.25, and 0.3). The walls of the room are maintained at a constant temperature of 77 K. The electronics in this package can only operate in the surface temperature range of 40°C ? Ts ? 85°C. Determine the range of power dissipation for the electronic package over this temperature range for the three surface emissivity values (?). Plot the results in terms of vs.?Ts(°C) for the three different values of emissivity over a surface temperature range of 40 to 85°C with temperature increments of 5°C (total of 10 data points for each ? value). Provide a computer-generated graph for the
display of your results, and tabulate the data used for the graph. Comment on the results obtained. What will be an ideal response?
Explain the difference between a Positive Temperature Coefficient (PTC) thermistor and a Negative Temperature Coefficient (NTC) thermistor.
What will be an ideal response?
What code restrictions can prevent using an open loop geothermal system?
A) patent and copyright laws often prohibit the use of open systems B) some states require all discharged water to stay on the owner's property C) geothermal systems typically are not very efficient D) some states have bans on any type of geothermal system