申論題

15. The figure shows a rectangular wire loop lying in three magnetic fields given by these functions (in teslas and seconds): B₁ = 3.00t, B₂ = 50.0, B₃ = 4.00t²+ 5.00. The dimensions are L₁ = 2.00 m, L₂ = 3.00 m, L₃ = 1.00 m, and L₄ = 2.00 m. The directions of the fields are indicated. The resistance is 5.50 2. What is the current

(A) in the circuit at time t = 0.500 s?