Changing orientation and induced emf Generator for space station Astronau...

Changing orientation and induced emf

Generator for space station Astronauts on a space station decide to use Earth’s magnetic field to generate electric current. Earth’s field in this region has the magnitude of 3.0 x 10^-7 T. They have a coil that rotates 90° in 1.2 s. The area inside the coil measures 5000 m². Estimate the number of loops needed in the coil so that during that 90° turn it produces an average induced emf of about 120 V. Indicate any assumptions you made. Is this a feasible way to produce electric energy?