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

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.

Formula

Primary Turns / Primary Voltage = Secondary Turns/Secondary Voltage

Givens

Primary Turns = 300 Secondary Turns = 600 Primary voltage = x Secondary Voltage = 75

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