- #1
soleiletlune
- 1
- 0
hi, i have to build an dc electromagnetic buzzer for school project, but I'm having tons of trouble! can anyone offer advice to help me out? (like good websites with instructions or pointers?) i have most trouble with the connect/disconnect part of the buzzer! i have this nail that is fixed in between an electromagnet and a tin can and everytime it touches the tin can its supposed to complete the circuit, and the electromagnet is supposed to become magnetized and attract the nail towards it which thus disconnects the circuit. this makes the electromagnet become demagnetized again and cause the nail to fall back towards the tin can and complete circuit. this process is supposed to keep repeat, but my nail persistently stays stuck towards the tin can and kind of just vibrates weakly. any ideas on how to make the disconnect/connect more pronounced and fluent?