what is the difference between 5v capacitor and 5v battery

Answer Posted / sajad ahmad mir, physics schol

5V Battery is that holding can in which chemical reaction produce +ve and -ve ions which develop potential difference (voltage) of 5V across the electrodes (different metal plates)inserted in chemical solution(electrolyte).Also this voltage minimize but slowly in a large span of time.That is why it is used in Radios, mobile phones, computers etc., where it should work for long periods.
However on the other hand a 5V capacitor is that holding can which develops 5V maximum potential difference across its ends separated by dielectric(polarizable material/space like air/Vacuum etc)that too in presence of electric field and quickly discharges in a very short span of time. That is why it is used in motors, electric fans, etc where high potential is ofcourse required when motor is about to start but for short span of time.
Let me conclude with these words that in battery chemical reaction takes place for the production of 5v or some potential difference across its electrodes and persists as long as chemical(electrolyte) will be exhausted.While in case of capacitors no chemical reaction takes place but due to coulomb electrostatic force charge separation (polarization) takes place for the production of 5V or some other potential but discharges it in a blink of time.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is zigbee?

649


Explain the construction and pros of using plasma screens.

533


What is potential transformers?

640


why passive components are used in pre emphasis and de emphasis?

1935


Which filter has the highest q factor?

651






what is mean of area?

1563


what is the difference between isdn and idn?

8068


Explain why is an excess-3 code called an unweighted code?

675


what is PTP radio and PMP radio? give me elaborate description...plz

1712


Why bjt is known as current controlled device and fet is known as voltage controlled device?

587


Write the total description of Ultra Commissioning.

1533


hi all iam going to give AAI tech exam i did my BE in electronics and communication if any one have any sample papers and SYLLABUS for it please plzzzzzzzzzzzzz for my career mail me at neha_sheokand11@yahoo.co.in

1413


Photodiode is a photovoltaic device or a photoconductive device or both?

570


What are the limitations of the basic differentiator circuit?

839


sir i want to know when is the exam in 2009 and last date for application form ,plz let me know sir

1626