Transformer Calculations

• The output potential difference can be calculated by using the first equation, which gives 45 over vs equals 18 over 54, and can be rearranged to get vs by itself.
• The output potential difference must be 135 volts.
• If the input current was 12 amps, the output current can be calculated using the second equation, which gives 45 times 12 equals 135 times is, and can be divided by 135 to get 45 times 12 over 135 equals is.
• The output current is 4 amps.