EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Textbook Question
Chapter 16, Problem 14R
What section of the Code prohibits embedding Type UF cable in concrete? __________
_____________
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Crystallographic planes
Crystallographic planes are denoted by Miller indices.
5b
Algorithm for Miller indices
1. Read off intercepts of plane with axes in
terms of a, b, c
2. Take reciprocals of intercepts
3. Reduce to smallest integer values
4. Enclose in parentheses, no commas.
353
1/3 1/5 1/3
535
(535)
In the cubic system, a plane and a
direction with the same indices are
orthogonal. E.g. [100] direction is
perpendicular to (100) plane.
Correspondingly, [123] direction is
perpendicular to (123) plane.
[2,3,3]
Plane intercepts axes at 3a, 2b, 2c
2
11 1
Reciprocal numbers are:
3'2'2
b.
Indices of the plane (Miller): (2,3,3)
2
a
Indices of the direction: [2,3,3]
X
(200)
(100)
(110)
(111)
(100)
Indices of crystallographic plane can be found from cross product of indices of
any two non-parallel directions in this plane.
Crystallographic positions
Crystallographic position
is denoted by three
numbers, which are
coefficients of the
position vector, e.g. ½½½
for the red atom.
Here the 'new' atom is at a/2 + b/2 + c/2
Silicon crystal has so-called "diamond type lattice".
Each Si atom has 4 nearest neighbors.
Diamond lattice starts with a FCC lattice and then
adds four additional INTERNAL atoms at locations
r = a/4+b/4+c/4 away from each of the atoms. In
other words, diamond lattice is formed by two FCC
lattices sifted by the vector r.
find the answers for this prelab
Chapter 16 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Ch. 16 - Prob. 1RCh. 16 - What are the circuit ratings? __________________Ch. 16 - Prob. 3RCh. 16 - Prob. 4RCh. 16 - Prob. 5RCh. 16 - a. How many lights are recommended for a one-car...Ch. 16 - From how many points in the garage of this...Ch. 16 - GFCI breakers or GFCI receptacles are relatively...Ch. 16 - The total estimated volt-ampere load of the garage...Ch. 16 - Prob. 10R
Ch. 16 - Prob. 11RCh. 16 - Prob. 12RCh. 16 - In the spaces provided, fill in the cover (depth)...Ch. 16 - What section of the Code prohibits embedding Type...Ch. 16 - Prob. 15RCh. 16 - When a box-cover unit is installed for an overhead...Ch. 16 - When outdoor receptacles are installed where a...Ch. 16 - In order to wire a post light, a homeowner...Ch. 16 - What concerns are there when installing a...
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