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What is the purpose for finding temperature coefficient of resistance?
Wiki User
∙ 13y ago
to investigate change in resistance as temperature is varied
Wiki User
∙ 13y ago
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What is the purpose of the series resistor in your designed ammeter circuit?
You appear to be referring to a 'swamping resistor' which is connected in series with a moving-coil ammeter's moving coil.To minimise any errors due to temperature changes in the resistance of the instrument's moving coil, the coil is connected in series with what is termed a 'swamping resistor' whose resistance is large in comparison with that of the moving coil, and which is manufactured from an alloy with a very lowtemperature coefficient of resistance (i.e. a metal whose resistance is hardly effected by wide variations in temperature).For example, if the resistance of a 1-Ω moving coil increases to, say, 1.1 Ω, when its rated current flows through it, this will introduce a 10% error in the instrument's reading.But by calibrating the instrument with a series swamp resistor of, say, 49 Ω, the overall resistance at rated current will become 50.1 Ω. This will result in an error of just 0.2%.A swamping resistor, then, is an integral part of all moving-coil instruments and, when we refer to an instrument's 'coil resistance', we actually mean the combined resistance of the moving coil itself and its swamping resistor.
What is the purpose to apply bitumen compound on steel piles?
Corrosion resistance is the first thing that comes to mind.
What is bleeder resistor?
They are resistance connected in parallel with high voltage power supply for the purpose of discharging the energy stored in filter capacitance when the equipment is turned off.
What is thermocouple cable?
The thermocouple is an sesnsing device , when the temperature increases it increases the voltage , that voltage is used for tripping purpose
What happens if a circuit has no resistance?
Then the voltage in will equal the voltage out. The purpose of a resistor is to reduce the amount of electrical flow of current. You 'short out' the supply and blow a fuse/circuit breaker.
Resistance thermometer purpose of the device?
they are devices used to measure the temperature, applying the temperature to RTD element. they are sensory devices.
What is the purpose of resistance?
Resistance doesn't have a 'purpose'; it exists whether you want it or not. You can modify it by adding more resistance in series or in parallel, but you can't avoid it!
What might be gained by knowing about an authors cultural background?
Finding a sense of purpose in the story.
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When was The Massive Resistance?
the purpose of it is it integrates schools
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for freedeom
What is the purpose of a temperature indicator?
To indicate the temperature?
What is the purpose of finding derivative?
The purpose of finding a derivative is to find the instantaneous rate of change. In addition, taking the derivative is used in integration by parts.
What is the purpose of finding the LCD of fractions?
because.
What was the purpose for finding Georgia?
For Halle berrey
What is the purpose. of range?
it about finding the possible risk
What was Columbus's purpose of finding America?
for fun
