Grounding is ___________
a. The insertion of a copper rod into the earth down to 8 feet.
b. An electrical connection of all metal parts of a solar photovoltaic system to a system of copper conductors thatterminates at copper rods that are inserted into the earth
c. A safety circuit that helps protect the solar photovoltaic system from lightening strikes and short circuits.
d. All the above are true.
D
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An inductor has an inductance of 0.8 H and is connected to a 120-V, 60-Hz line. How much current will flow in this circuit if the wire resistance of the inductor is negligible?
a. 0.366 A b. 0.379 A c. 0.398 A d. 0.413 A
There are three features of exhaust fans to consider when selecting one: electrical efficiency, noise level, and __________.
a. color b. mounting options c. location d. power
Cycles per second is also called a
A) hulen. B) hertz. C) newton. D) pascal. E) none of the above.
The interface controller interfaces directly with the subscriber line and holds translation information
Indicate whether the statement is true or false