Count the turns ratio of the windings. The voltage ratio is equal to the turns ratio. The current ratio is equal to the inverse of the turns ratio. For instance, a power transformer with a 10:1 turn ratio (primary to secondary) running on 120V will produce 12V. If it consumes 1 ampere from the input, it will provide 10 amperes to the output.
If it were 1 then there would be no point in having it there!
1/5.
the ratio is 8:1.It is 8 to 1.
.5% = .5/100 = 1/200 so the ratio would be 1:200
The secondary voltage of a transformer with a turns ratio of 5 to 1, and primary voltage of 200 is 40. (5 to 1)
Transformer turns ratio is the ratio of voltages between two windings. For instance, a 24VAC control transformer that runs on 120VAC will have a turns ratio about 5 to 1.
because the copper is saved in the auto transformer that is the ratio of weights of copper in auto transformer to normal transformer is (1-(1/a)) where a is transformer ratio
The ratio would be a 50:1 current transformer.
You will have a 1:1 ratio isolation transformer.
For an ideal transformer, the voltage ratio is the same as its turns ratio.
Lets put a value to the transformer, say 500 VA. Step down with a 5:1 ratio. Say 250 volts on primary. 250/5 = 50 volts secondary. 500 VA transformer/50 volts secondary = 10 Amps. Therefore the secondary would have to have the larger wire to accommodate the larger current.
a: 1:1 ratio its only purpose is to isolate
Transformer step-up/step-down voltage is turns-ratio, so if a transformer has 20 primary windings and 100 secondary windings (a turns-ratio of 1 to 5) and the secondary voltage is 25, then is the primary voltage is 5.
A transformer primary of 1200 turns with a secondary of 400 turns is a ratio of 3 to 1.
3
The properties of an 'ideal' transformer are (1) voltage ratio equals turns ration, (2) no losses.