transformers and conservation of energy.. (1 Viewer)

[moo_moo_molly]

how do transformers not violate the principle of conservation of energy??

 

[alcalder]

Power is conserved from one side of the transformer to the other (in an ideal transformer, at least).

P_in = P_out

Energy cannot be created nor destroyed and hence Voltage and Current cannot be created nor destroyed. Energy can dissipate in the form of heat (eddy currents) but not increase.

Does this help?

 

[moo_moo_molly]

Thanks... I ended up getting a friend to explain it to me anyway... I didn't realise the current changed as well as voltage and that's why I was confused....

 

[Forbidden.]

At least we have some female students doing physics, my class consists of only 13 males 0 females ...

 

[angmor]

erm i think whoever topped the state in physics last year was female

 

[moo_moo_molly]

There's 3 girls in my class... there was 4 until last week when one of the dropped it - INSANEO...