please answer 2 questions fast and correct
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In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or ΦB. The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds), and the CGS unit is the maxwell. Magnetic flux is usually measured with a fluxmeter, which contains measuring coils and electronics, that evaluates the change of voltage in the measuring coils to calculate the measurement of magnetic flux.
FORMULA-
\Phi=B A \cos \theta
\Phi = magnetic flux
B = magnetic field
A = area
\theta = angle between a perpendicular vector to the area and the magnetic field
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{PRINCE ROY~}
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the study or practice of growing flowers, fruit and vegetables
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