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Principle: A galvanometer measures small currents, but to measure voltage, it must be modified to withstand higher voltages without full-scale deflection. This is achieved by connecting a high resistance (known as a “multiplier resistor”) in series with the galvanometer.
Apparatus:
A sensitive galvanometer,
A precision series resistor (multiplier),
Connecting wires,
Terminals and a calibrated scale.
Operation: When voltage is applied across the combination, only a tiny fraction of current (proportional to the voltage) passes through the galvanometer, protecting the coil and ensuring readings within the instrument's range. The scale is then calibrated in volts instead of amperes or milliamperes.
Formula: The total resistance
R
R required in series is
R
=
V
I
g
−
G
R=
I
g
V
−G
where
V
V is the maximum voltage to be measured,
I
g
I
g
is the full-scale deflection current of the galvanometer, and
G
G is its internal resistance.
This conversion apparatus is invaluable for educational demonstrations, showing practical applications of Ohm’s Law and extending the utility of a galvanometer for voltage measurements.
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Ferrous borate extra pure is a high-quality iron(II) borate compound (commonly referred to as iron(II) borate or ferrous borate), used predominantly in laboratory and industrial settings for applications that demand high purity standards. It typically appears as a fine, air-sensitive solid and is valued for its chemical stability under controlled conditions. The compound features a high degree of purity, making it especially suitable for analytical work, advanced research, and select industrial processes.
Product Description for Website
Ferrous borate extra pure (Iron(II) borate) is a premium-grade inorganic salt prepared to strict purity standards, ensuring low levels of contaminants and accurate stoichiometry for scientific and technical applications. The product is carefully processed and packaged to maintain its chemical integrity and support reliable results in laboratory analysis and synthesis.
Synonyms: Iron(II) borate, Ferrous borate
Chemical Formula: Fe(BO2)2 (hydrated forms and other stoichiometries possible)
Appearance: Pale solid, may be air-sensitive
Grade: Extra pure (analytical/research grade)
Applications: Used in specialized laboratory analyses, catalyst systems, advanced inorganic synthesis, and as a starting material in certain industrial applications where high purity is critical.
Key Features
High purity and controlled chemical analysis for reliable, reproducible results
Packaged with minimal contamination risk and maximum shelf-life
Suitable for use in chemical research, formulation, and manufacturing at the analytical level
Safety & Handling
Ferrous borate is generally stable under typical laboratory conditions but should be handled with care as it may be sensitive to atmospheric moisture and air. Use standard personal protective equipment and store in a tightly sealed container in a cool, dry environment.
This concise description is suitable for use as a base product summary or catalog entry for e-commerce or laboratory supply websites, ensuring clarity for research and procurement professionals.
Ferrous borate extra pure is a high-quality iron(II) borate compound (commonly referred to as iron(II) borate or ferrous borate), used predominantly in laboratory and industrial settings for applications that demand high purity standards. It typically appears as a fine, air-sensitive solid and is valued for its chemical stability under controlled conditions. The compound features a high degree of purity, making it especially suitable for analytical work, advanced research, and select industrial processes.
Product Description for Website
Ferrous borate extra pure (Iron(II) borate) is a premium-grade inorganic salt prepared to strict purity standards, ensuring low levels of contaminants and accurate stoichiometry for scientific and technical applications. The product is carefully processed and packaged to maintain its chemical integrity and support reliable results in laboratory analysis and synthesis.
Synonyms: Iron(II) borate, Ferrous borate
Chemical Formula: Fe(BO2)2 (hydrated forms and other stoichiometries possible)
Appearance: Pale solid, may be air-sensitive
Grade: Extra pure (analytical/research grade)
Applications: Used in specialized laboratory analyses, catalyst systems, advanced inorganic synthesis, and as a starting material in certain industrial applications where high purity is critical.
Key Features
High purity and controlled chemical analysis for reliable, reproducible results
Packaged with minimal contamination risk and maximum shelf-life
Suitable for use in chemical research, formulation, and manufacturing at the analytical level
Safety & Handling
Ferrous borate is generally stable under typical laboratory conditions but should be handled with care as it may be sensitive to atmospheric moisture and air. Use standard personal protective equipment and store in a tightly sealed container in a cool, dry environment.
This concise description is suitable for use as a base product summary or catalog entry for e-commerce or laboratory supply websites, ensuring clarity for research and procurement professionals.