Monday, March 2, 2015

Sonometer find the frequency of alternating current, GSEB std 11 & 12 Physics practical

Sonometer

Sonometer







AIM :-
To find the frequency of the alternating current with the help of a sonometer.
PRECAUTIONS
1  It  is not advisable to use sonometer wire made of iron or any other magnetic materials.
2  The measurement of radius of the wire should be carried out precisely.
3  The transformer key should be switched off after every observation.
4  The wire should be kept exactly in the middle between the magnetic poles.
5  The wire should be of uniform cross-section and it should not have a twist or a bend.
Sonometer apparatus
Apparatus  :- A sonometer, horse-shoe magnet, a transformer, a pan, weights and a 
micrometer screw.

Sonometer practical


OBSERVATION TABLE

\ Average  √T/L =                        

For more details View Video
To find the frequency of the alternating current with the help of a sonometer.

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