Question

To find the frequency of the
a.C. Mains with a sonometer with readings and calculation

Answer 1

Answer:

To find the frequency of a.c mains with a sonometer we must remember the law of lenght which is f1L1=f2L2 and ac source can be cosidered I=Imsin(wt)

Explanation:

Suppose,

The frequency of the magnetisation of electromagnet is f1 and later becomes 2f, L1 is the position of electromagnet and tuning for frequency is f2 and has a resonant lenght of L2.

Therefore, With law of lenght

1.  f1L1=f2L2

    2.  f1=f2(L2/L1)

Putting the consideration marked with bold letters.

We find the frequency of alternating current i.e

3.      f=f2(L2/L1*2)

Once we find the frequency of the A.C curent we can find the angular velocity

4. w=  2π*f

5. Natural frequency of wire=$(1/2L)\sqrt{T/u}$

  where, T=tension and u=mass per unit lenght

Answer 2

Answer:

To determine the frequency of A.C. mains by means of a Sonometer | Physics Experiment with Data

AIM: To determine the frequency of A.C. mains by means of a Sonometer

APPARATUS REQUIRED: Sonometer with non-magnetic wire, step- down transformer,

magnet, rheostat, 50 gm weights with hanger

FORMULA: The fundamental frequency of transverse vibrations of stretched string is given by

the formula

Explanation:

for the data and tables and readings visit my yt channel- Raunit Verma you will find the readings there with pdf