I am beginner in electronics last night i experimented to step up 12 volt dc
i took out a transformer from multimedia speakers of my pc. when i manually checked that transformer then i found that its purpose in the speakers was just to step down 220 vac to 12vdc, when i connected it to my 12 volt battery then it gave 0 voltage.
According to my knowledge ( i am 10th grade student) it should step up the voltage so, why it's not doin that?
plz reply soon i am very curious to know itz answer.
thx in advance
i took out a transformer from multimedia speakers of my pc. when i manually checked that transformer then i found that its purpose in the speakers was just to step down 220 vac to 12vdc, when i connected it to my 12 volt battery then it gave 0 voltage.
According to my knowledge ( i am 10th grade student) it should step up the voltage so, why it's not doin that?
plz reply soon i am very curious to know itz answer.
thx in advance