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

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

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.