The charge and discharge characteristics of lead battery, Physics

Assignment Help:

The charge and discharge characteristics of lead battery:

During discharge the plates are converted into lead sulphate, the water content of the electrolyte increases, the internal resistance of the cell increases and the terminal voltage decreases.

By passing a current through the battery in the opposite direction these effects are reversed. The plates are converted back to their original form, the water content of the electrolyte decreases, the internal resistance decreases and the terminal voltage increases. The process of recharging takes approximately 8 to 10 hours.

During most of the charge and discharge cycle the battery terminal voltage remains constant at 1.95V, it therefore gives no indication as to the battery's state of charge.

The specific gravity of the electrolyte however changes at a regular rate as the battery is charged, or discharged and can therefore be used to determine the battery's state of charge.


Related Discussions:- The charge and discharge characteristics of lead battery

IR frequencies of various functional groups, What are the ir frquencies of ...

What are the ir frquencies of various functional groups

Ray optics, sign conventions for lenses

sign conventions for lenses

Flemings right hand rule, Flemings right hand rule: When a straigh...

Flemings right hand rule: When a straight wire is moved through a magnetic field, an emf is induced in it, in the manner of the coil and magnet experiment. Once again, li

Ratio of specific charge of a proton and an alfa-particle, The ratio of sp...

The ratio of specific charge of a proton and an  alfa-particle is: (1) 2 : 1 (2) 1 : 2 (3) 1 : 4 (4) 1 : 1 Ans:(1) 2 : 1

Oscilloscope, How to calibrate an oscilloscope?

How to calibrate an oscilloscope?

Determine the mass of the steam, A piston-cylinder device initially contain...

A piston-cylinder device initially contains 0.8 m 3 of saturated water vapour (steam) at 250 kPa. At this state, the piston is resting on a set of stops and the mass of the piston

Dissipation factor, It is defined as the dielectric loss expressed as the t...

It is defined as the dielectric loss expressed as the tangent of the angle between the reactance and the impedance vectors of the capacitor, it is denoted by D. FACTORS AFFECTIN

Keplers second law, Keplers Second Law After studying a wealth of plane...

Keplers Second Law After studying a wealth of planetary data for the motion of the planets about the sun, Johannes Kepler reasons three laws of planetary motion. Kepler's secon

Give an example of the elapse time for different observers, Two observers, ...

Two observers, A on earth and B in a spacecraft whose speed is 2.00 x 108 m/s, both set their watches to the same time when the ship is abreast of the earth. (a) How much tim

Express the new single black hole, 1. How fast must an object travel for i...

1. How fast must an object travel for its total energy to be (a) 1% more than its rest energy and (b) 99% more than its rest energy. 2. A proton is moving with a constant speed

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