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Typical scheme of measuring el. current and voltage
The deflecting torque in any moving-iron instrument is due to forces on a small piece of magnetically 'soft' iron that is magnetized by a coil carrying the operating current. In repulsion type moving-iron instrument consists of two cylindrical soft iron vanes mounted within a fixed current-carrying coil. One iron vane is held fixed to the coil frame and other is free to rotate, carrying with it the pointer shaft. Two irons lie in the magnetic field produced by the coil that consists of only few turns if the instrument is an ammeter or of many turns if the instrument is a voltmeter.
Current in the coil induces both vanes to become magnetized and repulsion between the similarly magnetized vanes produces a proportional rotation. The deflecting torque is proportional to the square of the current in the coil, making the instrument reading is a true 'RMS' quantity Rotation is opposed by a hairspring that produces the restoring torque. Only the fixed coil carries load current, and it is constructed so as to withstand high transient
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What will happen in the absence of iron cylinder in a moving coil galvanometer?
it will not work
What is type of input of loudspeaker?
A loudspeaker is a transducer; it converts one form of energy to another. In this case, electrical energy into acoustic (pressure) energy. Many types of loudspeaker can also be used as a microphone. This effect is known as reciprocity. An ordinary 'moving coil' loudspeaker will be quite a good microphone, when associated with appropriate amplifiers.
What kind of tool makes work easier and has few or no moving parts?
screwdriver, wedge, tire iron,
What type of energy does a loudspeaker produce?
The energy is in the form of sound waves, which are moving air molecules, a form of kinetic energy.
Does lgks360 have loudspeaker?
lg ks360 does have a loudspeaker !
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
Is loudspeaker an input device?
No, Loudspeaker is an output device.
What is the duration of The Loudspeaker?
The duration of The Loudspeaker is 1.12 hours.
How do you disrupt or jam a loudspeaker?
up your neighbour's loudspeaker?
What instrument measures both ac and DC?
hot wire ammmeter or a moving iron ammeter will work for ac and dc.
When was The Loudspeaker created?
The Loudspeaker was created on 1934-06-01.
Who is the inventor of the loudspeaker?
Name: Johann Phillip Reis-1st loudspeaker Name: Alexander Graham Bell - Electric loudspeaker
