Positive SSL
    14.素養(4)
1 匝數分別為500匝和1000匝的X線圈與Y線圈,若X線圈通過5A電流時,產生 4 × 10–4 Wb磁通量,其中 90%交鏈至Y線圈,則X線圈自感L 及兩線圈互感M分別為何? 104 統測
A L=72mH,M=40mH
B L=70mH,M=40mH
C L=40mH,M=70mH
D L=40mH,M=72mH

M12 = N2 Φ12I1

=1000 × 4 × 10–4 × 0.95 = 72mH

L = N ΦI

= 500 × 4 × 10–45 = 40mH