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mic or moving iron coil is instrument type works on ac and dc
mic or moving iron coil is instrument type works on ac and dc
A moving iron instrument works by means of a coil that attracts a moving iron mass that is attached to a pivoted pointer which moves across a graduated scale. The iron mass will be attracted towards the coil, regardless of the magnetic polarity of the coil. So, as an AC current continually reverses the magnetic polarity of the coil, the iron mass is always attracted towards the coil, never repelled by it. Similarly, a moving iron instrument doesn't care in which direction a DC current is flowing. So the instrument works equally well with both AC and DC currents. Moving iron instruments, however, are not as accurate as moving coil instruments which, of course, are sensitive to the direction of current.
If this is a homework related question, you really should consider trying to solve it yourself before looking at this answer. Otherwise, the value of the lesson, and the reinforcement provided by the assignment, will be lost to you.A moving coil measuring instrument has a coil attached to the indicator, surrounded by a magnet.A moving iron measuring instrument has a magnet attached to the indicator, surrounded by a coil.In both cases, the indicator is driven by magnetic torque caused by current flow in the coil.
The Bath Iron Works was founded in 1884 as Bath Iron Works, Limited.
The address of the Gilmanton Iron Works Library is: 10 Elm Street, Gilmanton Iron Works, 03837 0299
Different b/w a moving coil instrument and a moving iron instrument
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.
there is no iron works in red
The population of Allaire Iron Works is 63.
The population of Allaire Iron Works is 11.