The ratio of secondary to primary turns is 4:5. if power input is P, then the ratio of power output to power input is

The ratio of secondry to the primary turns in a trans is 9:4 . If the power input be P , what will be the ratio of power output (neglect all losses) to power input

The ratio of secondary to the primary turns in a transformer is 3:2 . If the power output be P , then the input power neglecting all loses must be equal to

The ratio of secondary to the primary turns in a transformer is 3:2 . If the power output be P , then the input power neglecting all loses must be equal to

The ratio of the secodnary to the primary turns in a transformer is 3:2 and the output power is P. neglecting all power losses, the input power must be

(a) Draw a labelled diagram of a step-up transformer. Obtain the ratio of secondary to primary voltage in terms of number of turns and currents in the two coils. (b) A power transmission line feeds input power at 2200 V to a step-down transformer with its primary windings having 3000 turns. Find the number of turns in the secondary to get the power output at 220 V .

For an ideal transformer ratio of output ot the input power is always