Principle of cell , Physics

Assignment Help:

Principle of Cell:

To study electrical principles further we require a source of emf. Although an emf can be produced by any of the six methods discussed above, large amounts of useable power can only be produced chemically or by generation. Generation requires a more in depth study of magnetism and therefore cells and batteries will be studied first.
On an aircraft, the battery may be used for engine starting, but far more importantly, the battery is the source of emergency power when the generator fails. Although aircraft battery systems and servicing will be studied at a later date, battery principles and battery construction will be studied now and will not be repeated.

PRINCIPLES

A Cell is a portable device which converts chemical energy into electrical energy. A group of interconnected cells is known as a battery. Cells operate on a principle of the exchange of charges between dissimilar metals.
CELL & BATTERY SYMBOLS

The circuit symbols for cells and batteries are shown below. To identify the polarity of the terminals, a long thin line is used to represent the positive terminal and a short thick line the negative terminal. Sometimes the terminal voltage is indicated.

1215_principle of cell.png


Related Discussions:- Principle of cell

Max-well-ampere-s-law-4-quation , Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain doppler effect, Whenever there is a relative speed among a source o...

Whenever there is a relative speed among a source of sound and the listener, the apparent frequency of sound listen by the listener is dissimilar from the real frequency of sound e

Calculate the thickness of the crystal, The refractive indices of a do...

The refractive indices of a double refracting crystal for extraordinary and ordinary ray are 1.584 and 1.592 respectively for wavelength 5600A 0 . Calculate the thic

Ionising argon, An atom of argon(18 protons, 19 neutrons) is ionised by the...

An atom of argon(18 protons, 19 neutrons) is ionised by the removal of two orbiting electrons. Q) How many protons and neutrons are there in this ion?

Attraction & repulsion of atom, Attraction & repulsion of atom: It can ...

Attraction & repulsion of atom: It can be observed, that if two negatively charged bodies are brought together, there is a force of repulsion between them. Similarly if two p

Define the term multi-mode fibre shortly, Define the term multi-mode fibre ...

Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr

Explain the peak-to-peak voltage, A sinusoidal voltage trace displayed by a...

A sinusoidal voltage trace displayed by an oscilloscope is shown in Figure. If the 'time/cm' switch is on 500µs/cm and the 'volts/cm' switch is on 5V/cm, find, for the waveform,

What is the velocity, An ice-skater with a mass of 75.0 kg pushes off again...

An ice-skater with a mass of 75.0 kg pushes off against a second skater with a mass of 42.0 kg. Both skaters are initially at rest. After the push, the larger skater moves

Explain crohn disease, Explain Crohn disease Crohn's disease:  a chro...

Explain Crohn disease Crohn's disease:  a chronic, recurrent disease characterized by patchy inflammation of any portion of digestive tract from  the mouth to anus.

Neutron is a fundamental particle carrying, Neutron is a fundamental partic...

Neutron is a fundamental particle carrying: (1)A charge of +1 unit and a mass of 1 unit    (2)No charge and a mass of 1 unit (3)No charge and no mass (4) A charg of -1

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd