RESISTORS
| Institution | TVET |
| Course | Certificate in ICT |
| Year | 1st Year |
| Semester | Unknown |
| Posted By | stephen oyake rabilo |
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| Pages | 13 Pages |
| File Size | 406.28 KB |
| Views | 3327 |
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Description
What is an electronic component?
• Electronic components are the building blocks of electronic
circuits, each serving a specific function.
• There are two types:
a) Passive components: Passive components are electronic
components that do not require an external power source to
operate and cannot introduce power into a circuit. Instead, they
can only consume, store, or dissipate electrical energy. Passive
components typically influence the voltage, current, or signal flow
in an electronic circuit without amplifying or controlling it.
Examples: Resistors, Capacitors, Diodes, Inductors.
b) Active components: An active component is an electronic
component that relies on a source of energy and can inject power
into a circuit. Active components are capable of controlling the
flow of electricity in a circuit and typically require an external
power source to operate. They can amplify signals, process data,
and perform other complex functions. Example: Transistors,
Integrated Circuits or ICs, Logic Gates.
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BIOCHEMISTRY
Polyurethanes are prepared from diisocyanates
and diols. Urethane (also called a carbamate) is a
functional group that contains both an ester and an
amide at a single carbonyl group.
Nucleophilic Addition Reaction: Example 1:
Sevin is a highly effective, biodegradable insecticide. It
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BIOCHEMISTRY
PETROLEUM CHEMISTRY
Carbon is so Important in the Life Cycle. It has
numerous ways of bonding with many other
elements, particularly oxygen and hydrogen.
It can form both “organic” and “inorganic”
compounds. Organic compounds are considered
unstable in the biosphere because they are in the
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BIOCHEMISTRY
Alkyl halides are organic molecules containing a halogen
atom bonded to an sp3 hybridized carbon atom.
• Alkyl halides are classified as primary (1°), secondary (2°),
or tertiary (3°), depending on the number of carbons bonded
to the carbon with the halogen atom.
• The halogen atom in halides is often denoted by the symbol
“X”.
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BIOCHEMISTRY
Natural Gas
Natural gas is a gaseous fossil fuel consisting
primarily of methane but including significant
quantities of ethane, butane, propane, carbon
dioxide, nitrogen, helium and hydrogen sulfide.
Obtained from oil fields and natural gas fields,
and in coal beds.
Methane-rich gases are produced by the
anaerobic decay of non-fossil organic material, ie
biogas.
Total world production of natural gas in 1986
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.
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