Experiment of a hair hygrometer, Science

Assignment Help:

A hair hygrometer

This device will enable you to read the relative humidity directly without the use of tables.

Procure a few human hairs about 30 cm long. Free them from grease with dilute caustic soda solution. Fix one to the upper end of a stand and stretch it with a 50 gm weight. The hair should pass two or three times round a spool fixed to an axle which is free to turn in bearings made from a piece of tin and fastened two-thirds of the way down the stand. Fix a Light pointer of balsa wood to the axle, and organize a postcard to act as a scale. For greatest sensitivity the diameter of the spool should be small

 


Related Discussions:- Experiment of a hair hygrometer

What are the stages of development of a tropical cyclone, Question : a)...

Question : a) Define i) relative humidity. b) Why is it generally cloudy in the vicinity of a low pressure area and sunny in the vicinity of high pressure? c) What are th

Weighing moisture again, Weighing moisture again The similar experiment...

Weighing moisture again The similar experiment can be done with a bath towel. Wet the towel and wring it out. Hang it on a coat hanger. Hang the coat hanger on single end of a

What is topography, What is Topography The location of a soil on a land...

What is Topography The location of a soil on a landscape i.e., topography or relief of the land is an important passive factor in soil formation as it can affect the impact of

How to make an overflow can and catch bucket, How to make an overflow can a...

How to make an overflow can and catch bucket These are useful for the study of Archimedes'  principle, which controls floating and sinking. To make an overflow can secure a tin

Explain the disorders of the female reproductive system, Explain the Disord...

Explain the Disorders of the Female Reproductive System Over the last decade, there has been a growing concern regarding the prevalence and extent of reproductive tract infecti

Clouds formed at the highest altitude, Which are clouds formed at the highe...

Which are clouds formed at the highest altitude: cirrocumulus

The effect of falling water on topsoil, The effect of falling water on tops...

The effect of falling water on topsoil Fill a flower pot with sandy soil or loam. Set the pot under a dripping tap for an hour or more. View how the clay and inorganic matter a

Verification of stock register , VERIFICATION OF STOCK REGISTER : A stock ...

VERIFICATION OF STOCK REGISTER : A stock register is an important component of any official establishment in which records related to purchase, use and maintenance of all the item

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