<img src="https://id-static.z-dn.net/files/de4/8eee6d4aae3524a2aaa6c836255d378d.jpg" alt="Cia n,nak minta tolong bole nda ?
Cia n,nak minta tolong bole nda ?<3
Jawaban:
17. B. saklar 1 tertutup, saklar 2 terbuka, saklar 3 tertutup
18. B. S1 dibuka S2 ditutup