40. When is magnetic flux at its maximum?
a. when the magnetic field is parallel to the cross-section of the coil
b. when the magnetic field is perpendicular to
C. when the magnetic field forms a 45-degree angle with the cross-section of the coil
d. when the
magnetic field forms a 90-degree angle with the cross-section of the
coil
d. ultraviolet rays
Lenz's law.
the cross-section of the coi


Sagot :

Mechanical energy is needed to rotate the coil of wire located between the pole faces of a permanent magnet. The magnetic flux through the plane of the coil has its maximum value when this plane is perpendicular to the magnetic field lines between the poles.