A set of contacts actuated by a magnetic coil is called a ____________________.
Fill in the blank(s) with the appropriate word(s).
relay
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What happens as a cellular phone users moves around within a particular cell and into another cell?
What will be an ideal response?
A potentiometer has 15 V across it. Between the center terminal and one end, a technician measures 3.4 V. What voltage will the technician measure between the center terminal and the other terminal of the potentiometer?
What will be an ideal response?
The electronegative charge on 2:1 type silicate clays is due primarily to:
A) ionization of surface OH groups. B) the effect of pH on the presence of H+ ions in the exchange complex. C) substitution of one metallic atom for another in the crystal structure of the clay. D) extremely small size of the individual colloid particles. E) the preponderance of tetrahedral sheets compared to octahedral sheets.
The number designation of a reinforcing bar denotes the approximate diameter of the bar in _____.
a. eighths of an inch b. centimeters c. sixteenths of an inch d. ounces per foot