The primary coil of a tranformer has 700 turns and is connected to a 200 v source.The secondary supplies an output of 900 v.Is this a step-up or step-down transformer?How many turns are in the secondary coil?
2006-09-18 17:32:20 · 5 answers · asked by xxgodsgift2youxx 1 in Science & Mathematics ➔ Physics
If the secondary(output) is higher than the primary(source) then it is a step up.
2006-09-18 17:34:49 · answer #1 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
Step up. Any time the secondary out put is greater than the primary input, it is a step up transformer. Just do the math for the number of turns. It is a simple ratio problem. An example of a step down might be the charger for your cell phone. It uses 120 VAC input which steps down to typically around 3 to 6 VAC. This is then filtered through a diode and resister so that the out put is DC.
And the dummy above that thinks magnets aren't energy needs to hit the books too.
2006-09-18 17:46:08 · answer #2 · answered by Dusty 7 · 0⤊ 0⤋
It is obviously step-up transformer
secondary turns=(900/200)x 700=3150 turns
2006-09-19 05:08:33 · answer #3 · answered by dwarf 3 · 0⤊ 0⤋
It is a step-up transformer.
the turns ratio is 1 : 4.5
the number of turns are 3150 on the secondary
2006-09-18 17:38:53 · answer #4 · answered by LeBlanc 6 · 1⤊ 0⤋
did you know there is tech out there already that makes energy from nothing, with magnets.
why its not made conventionally, is a waste
2006-09-18 17:44:35 · answer #5 · answered by fusionholder 1 · 0⤊ 1⤋