Why do heat pumps operate more efficiently than electric furnaces?
A) Refrigerant has a natural affinity for heat.
B) They use electricity to move heat rather than converting electricity directly to heat.
C) Heat pumps and electric furnaces actually operate at about the same efficiency.
D) Heat pumps use a more direct method of converting electrical energy to heat energy.
B
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Si es necesario añadir un segundo electrodo de tierra, el espacio mínimo de separación entre los dos electrodos debe ser de_______.
a. 12' (3,65 m) b. 10' (3,04 m) c. 8' (2,43 m) d. 6' (1,83 m)
With reference to water, what is meant by container capacity?
What will be an ideal response?
Leguminous forest trees, such as Locust, enrich the soil in nitrogen, to the benefit of non-nitrogen fixing plants growing nearby
Indicate whether the statement is true or false
In electrical circuits, the grounding wire is typically ____.
A. black B. red C. green or bare D. white