When a person is done operating a power tool, what should be done?_____________________________________________________________________
What will be an ideal response?
Unplug the tool and roll up the cord.
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A brushless alternator would not have slip rings.
Answer the following statement true (T) or false (F)
Two types magnets are in use today: the electromagnet and the ____________________ magnet.
Fill in the blank(s) with the appropriate word(s).
In many communication systems a device called a “mixer” is used. In its simplest form a mixer is simply an analog multiplier. That is, its response signal y(t) is the product of its two excitation signals. If the two excitation signals are 
plot the magnitude of the CTFT of y(t) Y(f) and compare it to the magnitude of the CTFT of x1(t). In simple terms what does a mixer do?
One safety precaution to note is that hybrid vehicles use low-voltage systems.
Answer the following statement true (T) or false (F)