Лабораторные работы / Решенная лабораторная по физике 27

The laboratory work N^o 27.

The researching of magnetic field of the solenoid.

Had done by the student gr.__220171я__ F.N.S. Pavlov F.E.

Checked by ______________________ date ____________

Purpose:

Experimentally to define the meanings of the magnetic induction on the solenoid axis and to compare it with the accounting ones.

The order of performing a work:

1. Become familiar with the device and to switch on it.

2. By the handle on the device to place measuring spool L2 beside one of the ends of solenoid, define its position by means of the pointer on the scale.

3. Press the key S, to measure the deviation of the spot of reflected light at the scale of the galvanometer.

4. Such actions to make for over positions of the spool L2, to shifting it at 1sm along the solenoid axis. Write data to the table 1.

5. Using formula to find experimentally meanings of the magnetic induction, using k =2.07*10^-4 .

6. For the same meanings to calculate by the formulas and , the theoretical meanings of the magnetic induction in the solenoid.

7. Write data to the table1.

8. Construct the plots of B_ex = f₁(a) and B_th = f₂(a) using the results receiving at the experiment and at the theoretical accounting.

Table N^o1.

a, m	a, del	Bex, Tl	cos 1	cos 2	Bth, Tl
0	3.2
1	3.3
2	3.3
3	3.5
4	3.5
5	3.5
6	3.0
7	3.0
8	3.0
9	3.0
10	3.0
11	3.0
12	3.0
13	3.0
14	3.0
15	2.7
16	2.0
17	1
18	0.5

Conclusion:

So we have experimentally define the meanings of the magnetic induction on the solenoid axis and to compare it with the accounting ones.

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