If the forward current through the diode is near the maximum the diode is designed for, it typically has an RF resistance of only 0.1 ohm, and thus acts as a closed switch. Thus, for RF, the PIN diode acts as a closed switch if it is forward biased with the near maximum DC bias current.
A nucleotide is a chemical compound with three components: a nitrogen-containing base, a pentose (five-carbon) sugar (relatively simple carbohydrates), and one or more phosphate groups.he nitrogen-containing base of a nucleotide (also called the nucleobase) is typically a derivative of either purine or pyrimidine, which are heterocyclic compounds (organic compounds that contain a ring structure that has, in addition to carbon, such atoms as sulfur, oxygen, or nitrogen).
Split and merge into it. Answer by Mike754. Confidence votes 1.1K. A nucleotide unit is a single nucleotide within a nucleic acid polymer (DNA, RNA, etc). Each nucleotide unit is made of a sugar, phosphate group and nitrogen base.The nitrogen base of each unit is used to identify it. nucleotide is a monomer of a nucleic acid consisting of 3 parts.  These 3 parts include a pentose sugar, a phosphate  group, and a nitrogenous base. The nitrogenous bases â¦  include purines (adenine and guanine) and pyrimidines (cytosine and  thymine).