First slide

Magnetic flux and induced emf

Question

A square coil 10^-2 m² area is placed perpendicular to a uniform magnetic field of intensity 10³ Wb/m². The magnetic flux through the coil is

Moderate

A

10 weber
B

10^-5 weber
C

10⁵ weber
D

100 weber

Solution

$ϕ = BA = 10^{3} (10^{- 2}) = 10 weber$

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