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

Homework, An ostrich can run at speeds of up to 72km/h. Suppose an ostrich ...

An ostrich can run at speeds of up to 72km/h. Suppose an ostrich runs 1.5km at the speed of 58 km/h and then runs another 1.5km at the speed of 29km/h. What is the ostrich average

Black body Radiation, When Temperature increases,intensity increases,but in...

When Temperature increases,intensity increases,but in some time intensity decreases,Why?

Instantaneous velocity and instantaneous speed, Can instantaneous velocity ...

Can instantaneous velocity answer instantaneous speed be equal in uniform motion

Magnetic flux & flux density, Magnetic  Flux And Flux Density A magne...

Magnetic  Flux And Flux Density A magnetising force produces a certain amount of magnetic flux ( F), measured in Webers. The magnetic field is represented by imaginary lines

What is the resistance of a coil of aluminium wire, What is the resistance ...

What is the resistance of a coil of aluminium wire The resistance of a coil of aluminium wire at 18 ? C is 200?. The temperature of the wire is increased and the resistance

Other semiconductor materials, GALLIUM PHOSPIDE: It has band gap of 2.3e...

GALLIUM PHOSPIDE: It has band gap of 2.3ev. it can be used for light emitting diodes which can emit  green or red light. The red light is obtained with zinc or cadmium oxide dop

What is angle of friction?, Angle of friction is the angle between the resu...

Angle of friction is the angle between the resultant vector(resultant vector:-resultant vector of   frictional force and normalforce) and normal force vector.

Detectors and dielctrics, 1. What is the principle of gas filled detectors?...

1. What is the principle of gas filled detectors? 2. What are nuclear radiations or particle detectors?

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