what is the turns-ratio in a transmormer that is connected to a 120v acsource,andis providing 240vat secondary

Answer 1

1:2

but you get half the current

Answer 2

It's simple. 1:2, meaning the secondary has twice as many turns as the primary. Another way of visualizing this is that volts per turn is a constant for both primary and secondary for any given (properly designed) transformer. The current in the secondary of your transformer will be half that of the primary and both primary and secondary will dissipate the same amount of power. The cross section area of the wire used for the primary should be twice that of the secondary.

Answer 3

the turn ratio of 120v/240v transformer is 1 to 2

Answer 4

I suppose you are speaking of 240 volt because watt(not vat) is a mesure af powerand has nothing to do with the turn ratio which is 1:2

Answer 5

0.5

For every 1 winding on the primary, there are 2 on the secondary