Question

Однородное магнитное поле напряженностью 900 А/м действует на помещенный в него проводник длиной 25см и силой 1 мН. Определить силу тока в проводнике, если угол между направлениями тока и индукции магнитного поля равен 45 градусов

Answer 1

ДАНО

Н=900А/м

L=25 см=0.25 м

F=1 мН =10^-3 H

<45 град

μ0 = 4π•10–7 Н/A2

 --------------

I - ?

 

РЕШЕНИЕ

B = H*µo

F = B*I*L*sin<45

I = F / (H*µo*L*sin<45) =10^-3 / (900*4π•10–7 *0.25*sin<45) = 5 А

ОТВЕТ   5А

Answer 2

Calculation of Current in the Conductor

To determine the current in the conductor, we can use the formula for the force experienced by a current-carrying conductor in a magnetic field:

F = BIL sin(θ)

Where: - F is the force experienced by the conductor (given as 1 mN) - B is the magnetic field strength (given as 900 A/m) - I is the current in the conductor (to be determined) - L is the length of the conductor (given as 25 cm) - θ is the angle between the direction of the current and the magnetic field (given as 45 degrees)

We can rearrange the formula to solve for the current I:

I = F / (B * L * sin(θ))

Substituting the given values:

I = (1 mN) / (900 A/m * 0.25 m * sin(45 degrees))

Calculating the value:

I ≈ 0.00111 A

Therefore, the current in the conductor is approximately 0.00111 A.

Please note that the sources provided do not contain relevant information for this specific calculation.