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What is the Difference between moving coil and moving iron meter?
Wiki User
∙ 12y ago
moving coils will only respond to dc current
moving iron will respond to both ac and dc current
moving Ion meters tend to be read on a logarithmic scale, are slightly cheaper to manufacture, and are less accurately read.
moving coil meters are read on a linear scale, and are more accurate to read.
To read AC it must have a capacitor across its terminals and a diode in series to read AC.
Wiki User
∙ 12y ago
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What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
Scale used in moving coil meter is?
Linear Scale
What is the purpose of the permanent magnet in the moving coil meter?
The purpose of the permanent magnet in the moving coil meter is to measure electrical current. The coil will have a magnetic field which will react to the magnetic field of the permanent magnet. Since opposite poles attract, it will cause for the coil to move.Ê
What is coil galvanometer meter and its application?
Moving coil galvanometre is a device which is used to detect current in a curcuit.
What type of meter movement is used in most meters?
Most meter movements are of the D'Arsonval variety with a moving coil and a permanent magnet.
What are the functions of moving coil instrument?
The function of the moving coil is to deflect the instruments needle across a calibrated scale to give the meter operator an accurate reading of what ever he is testing. The moving coil is given a minute current, through internal instrument circuity, a sample of the potential that is being measured.
Differences between Permanent magnet moving coil and moving iron?
Answer submit troll
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The terms you are looking for are 'dynamometer' (no hyphen!) or 'electrodynamic' instrument. These terms describe an instrument movement, where the torque applied to the pointer results from the interaction of magnetic fields produced by fixed and moving coils. In the case of a wattmeter, the fixed coil is the current coil which is connected in series with the load, and the moving coil is the voltage coil which is connected in parallel with the load.A dynamometer type instrument differs from a moving-coil instrument, such as an ammeter or a voltmeter, in which the torque applied to the pointer is the result of the interaction between the magnetic fields produced by the moving coil and a permanent magnet.For three-phase power measurements, it is possible to use just two wattmeters in a configuration called the 'two wattmeter method'.
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