--> . . 11

 


>> . 11 .

3.

 


3. (. 78). ƒ α . ω

    ω = 2πƒ,

    . 78

:

    α = ω t.

, (. 15):

    = BScos α = BScos ω t.

, .

,

, , , .

= IR, I i = -Imsin ωt, = BScosin ωt.

m = BSω, , :

    = msin ωt

4. , . () (). , , . 90- . XX . (). , , . , , , .

. , - . . , , . , , .

(. 79). , . . , .

, . , , .

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