Itransformer i got primary coil with 300 turns and a secondary coil with 600 turns adult voltages 75 volts what is the input voltage

Formula

Primary Turns /Primary Voltage = Secondary Turns/Secondary Voltage

Givens

Solution

300 / x = 600 / 75                   Cross multiply

600*x = 300 * 75                   Combine the right

600*x = 22500                      Divide by 300

x = 22500/600                      Do the division

x = 37.5                                   Answer

We know that,

  The ratio between voltages in the coils is the same as the ratio of number of turns in the coil

Equation:  (Vp / Vs) = (Np / Ns)

Ns, Np = no.of turns on secondary and primary coils respectively

Vs, Vp = no.of turns on secondary and primary voltages respectively

                   (Vp / Vs) = (Np / Ns)

                   Vp / 75 = (300 / 600)

                       Vp = 37.5 Volts

input voltage is 37.5 volts.