Mixed Format $$E _ { L D N E } = \sqrt { E_{R} ^ { 2 } + E_ {X} ^ { 2 } }$$

Short Answer

Mixed format: $$E _ { L D N E } = \sqrt { E_{R} ^ { 2 } + E_ {X} ^ { 2 } }$$ (with a space between the whole number and the numerator) Fraction format: $1 / 4$ Reduce all fractions. A copper contact is insulated from its support with one piece of mica $X _ { L }$ inch thick, two pieces of fiber that are each inch thick, and $1 / 8$ inch of pressboard. The copper is $3 / 4$ inch thick, and the support is $7 / 8$ inch thick. What is the total thickness of copper, insulation, and support?