Multiple choice

A square wire loop of 4 cm sides is perpendicular to a magnetic field of 5 mT. Calculate the magnetic flux through the loop.

  1. 20 x 10-5 Wb

  2. 8 x 10-6 Wb

  3. 0.125 Wb

  4. 3.125 Wb

  5. 0.32 Wb
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Area of the loop, A = 4 cm x 4 cm = 16 x 10- 4 m2 , Magnetic field, B = 5 mT = 5 x 10- 3 T, Angle, θ = 00, Magnetic flux through the loop, Φ = BA cos θ = 5 x 10- 3 x 16 x 10- 4 cos 0= 8 x 10- 6 Wb

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