A fishbowl has a circular opening with a diameter of 15 cm. The fishbowl sits upright on a table in a magnetic field of 0.00110 T that is directed horizontally. What is the flux through the glass of the bowl?

−7.77 × 10−5 Wb
−1.9 × 10−5 Wb
−1.7 × 10−4 Wb
0.0 Wb

−1.9 × 10−5 Wb

Explanation:

Magnetic flux is the product of average magnetic field times the perpendicular area that is crosses times the angle between planar area and magnetic flux

Finding the area

Area = πr² = 3.14*0.075*0.075

Area=0.01767 m²

Magnetic flux = 0.01767*0.00110*cos 0

Magnetic flux =0.000019 = −1.9 × 10−5 Wb