Question

find the area of the newspaper you need to cover your notebook​

Answer 1

Answer:

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