1st off like to give Sourav Gupta and Debashis Das, full appreciaion and gratitude on a wiring diagram. as my electronic knowledge is that of a 2yr old :-) Much appreciated, and both a credit to the forum.
Ok. using 2 12v electromagnets powered by a 9v pp3 battery, size 50mm x 20mm & 70mm x 21mm. 25 /50k pull as in pic. Although they do the job, needing something lot thinner, so can be easily consealed inside a magic prop, but have same pull push force. Trying to read up, but a mine field to grasp.
Gathered the more current by increasing the voltage the more magnetic force? By intoducing capasitors?
Could anyone be good enough to help please.