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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.
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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?
What are the types of electrodynamometer?
The two main types of electrodynamometer are attracted disc type and moving coil type. In the attracted disc type, two stationary coils create a magnetic field that attracts a disc attached to the moving coil. In the moving coil type, the coil is suspended between stationary magnets and experiences a force when current flows through it.
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 type of meter movement is used in most meters?
Most meters use a moving coil meter movement, which utilizes a coil of wire attached to a needle that moves in response to the current flowing through the coil. This movement is reliable and accurate for measuring various electrical quantities.
What is the difference between helical spring and coil spring?
is helical coil and coil spring are the same
Why you called the watt-meter as dynamo-meter in the 3 phase power measurement?
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'.
Differences between Permanent magnet moving coil and moving iron?
Permanent magnet moving coil (PMMC) instruments use a moving coil that is suspended between the poles of a permanent magnet, whereas moving iron instruments use a stationary coil and a moving iron piece that moves within the coil's magnetic field. PMMC instruments are more accurate but have limited range, while moving iron instruments are less accurate but can measure higher currents. PMMC instruments are inherently more expensive compared to moving iron instruments.
Difference between shunt coil and tripping coil?
a shunt coil needs external supply & tripping coil gets supply from itself.
Ignition coil meter for suzuki sidekick 90'?
15 a ig coil meter
What is the construction and working details of moving iron and moving coil ammeters and moving coil voltmeters?
Different b/w a moving coil instrument and a moving iron instrument
How do you create electricity at any place?
by moving a piece of magnet in between a copper coil.
