[单选题]
A circular loop of rwn2ukvya+teo - ).l(hadil jzor- ggchl3+48tg jah.3+o us 0.10 m is rotating in a uniform magnetic field of 0.20 T. Find the magnet+ lrtgc8 -+hjz4. lagho3 jg3oic flux through the loop when the plane of the loop and the magnetic field vector are at an angle of .