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Investigate between Output and Input Voltage

 

Abstract

The aim is to research the relation between:
i) output and input voltage
ii) range of turns within the secondary and first coil of a self-designed electrical device A electrical device is AN device that is employed for dynamical the A.C. voltages.

 

An electrical device is most generally used the device in each low and high current circuit. intrinsically transformers are inbuilt an incredible strength of sizes. In electronics, measuring and management circuits, electrical device size is also therefore tiny that it weighs solely a couple of tens of grams whereas, in high voltage power circuits, it’s going to weight hundred of tones.

In an electrical device, the voltage transfer from one circuit to a different circuit takes place while not the utilization of moving components.
An electrical device that will increase the voltages is named a transformer. An electrical device that decreases the A.C. voltages is named a transformer.

The electrical device is, therefore, an important piece of equipment each for the top and low current circuits.

 

Principle

An electrical device supported the Principle of mutual induction in step with this principle, the quantity of magnetic flux joined with a coil dynamical, an e.m.f is evoked within the neighboring coil that’s if a varied current is a set-up during a circuit evoked e.m.f. is created within the neighboring circuit. The varied current during a circuit produces a varied magnetic flux that induces e.m.f. within the neighboring circuit.

 

Requirements

The electrical device consists of 2 coils. they’re insulated with one another by insulation and wound on a typical core. For operation at low frequency, we have a tendency to could have a soft iron. The soft iron core is wrapping by combination skinny iron strips coated with varnish to insulate them to scale back energy losses by eddy currents.The input circuit is named primary. and therefore the output circuit is named secondary.

Procedure :

1. Take a soft iron rod of cm and cm diameter. Wrap thick paper thereon.
2. Wind a coil P of decorated copper wire two hundred turns.
3. Wind another coil S of thick decorated copper wire with four hundred turns.
4. Each coil is wound over a constant length of the rod so virtually the complete flux created by this in one is joined to the opposite.
5. Connect the coil S with AN AC meter. Connect a homogenous meter across P additionally.
6. activate this in P and note voltage across the 2 coils
7. notice the quantitative relation Vp to Vs

 

Observations

1. we are going to notice that quantitative relation of Vp and Vs across the 2 coils is up to the quantitative relation of a range of turns within the coil P that within the coil S.i.e.,
Vp/Vs = Np/Ns —————(1)
2. The coil P (to that AC voltage is applied) is
Called the first and coil S (in that AC is induced) is named the secondary.
3.Since coil S is placed terribly near the coil P, the facility within the primary is transferred into the secondary through mutual induction.
4. It’s clear from equation one, that by the acceptable alternative of the flip quantitative relation i.e., Np/Ns, we will get the next voltage or lower voltage in S compared to it in P.

 

Energy Losses:-

Following are the foremost sources of energy loss during a transformer:
1. Copper loss is that the energy loss within the kind of heat within the copper coils of an electrical device. this is often attributable to Joule heating of conducting wires.
2. Iron loss is that the energy loss within the kind of heat within the iron core of the electrical device. this is often attributable to the formation of eddy currents within the iron core. it’s decreased by taking laminated cores.
3. leak of magnetic flux: happens in spite of best insulations. Therefore, the speed of modification of magnetic flux joined with every flip of S1S2 is a smaller amount than the speed of modification of magnetic flux joined with every flip of P1P2.
4. The hysteretic loss is that the loss of energy attributable to recurrent magnetization and demagnetization of the iron core once A.C. is fed to that.
5. generator striation: buzzing noise of an electrical device

 

 

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