Question

Рамку, площадь которой равна 1.5 м2, пронизывает однородное магнитное поле с индукцией 0,4 мТл перпендикулярно к плоскости рамки. Вычислите магнитный поток, пронизывающий рамку?

Answer 1

Ф=B*S*cos a
Подставляем Ф=4Тл * 0,5 м² * cos60 ( умножаем на косинус 60, потому что нужен угол между вектором и нормалью 90-30=60) 
Ответ Ф=1 Вб

Answer 2

Calculation of Magnetic Flux through a Frame

To calculate the magnetic flux through a frame, we need to know the area of the frame and the magnetic field perpendicular to the plane of the frame.

Given: - Area of the frame (A) = 1.5 m^2 - Magnetic field (B) = 0.4 mT (millitesla)

The magnetic flux (Φ) through a surface is given by the formula:

Φ = B * A * cos(θ)

Where: - B is the magnetic field strength - A is the area of the surface - θ is the angle between the magnetic field and the normal to the surface

In this case, the magnetic field is perpendicular to the plane of the frame, so the angle θ is 90 degrees.

Substituting the given values into the formula, we have:

Φ = (0.4 mT) * (1.5 m^2) * cos(90°)

Since the cosine of 90 degrees is 0, the magnetic flux through the frame is:

Φ = 0

Therefore, the magnetic flux through the frame is zero.

Please note that the magnetic flux is a scalar quantity and is measured in units of Weber (Wb) or Tesla meter squared (T·m^2).