find the area of the newspaper you need to cover your notebook
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Sigma is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase ∑ is used as an operator for summation. When used at the end of a letter-case word, the final form is used.
Step-by-step explanation:
Electrical resistance of a conductor may be considered as a measure of the opposition offered by it for the flow of electric charge through it.
SI unit of resistance is ohm.
(a) Conductors — 10-6 to 10-8 Ωm
(b) Alloys — 10-6 Ωm
(c) Insulators — 1012 to 1017 Ωm
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