A step down transformer has a trum ratio of 5:1. it is connected to 220 V, 50 Hz a.c. Mains supply.
The secondary voltage and the frequency of secondary voltage are given by

A step down transformer has turns ratio 40:1. (i) If the primary voltage is 240V, calculate the secondary voltage. (ii) If the secondary current is 4A, calculate the primary current.

A step up transformer has transformation ratio of 3: 2. What is the voltage in secondary if voltage in primary coil is 30 V ?

The number of turns of the primary and secondary of a transformer are 500 and 5000 respectively. The primary is connected to a 20 V, 50Hz ac supply. The output of the secondary will be

the number of turns of the primary and secondary of a transformer are 500 and 5000 respectively. The primary is connected to a 20V, 50Hz A.C. Supply. The output of the secondary will be

The ratio of the number of turns in the primary and the secondary coils of a step down transformer is 1:200 . It is connected to a.c. mains of 200 V. Calculate the voltage developed in the secondary. Determine the value of maximum current in the secondary, when a current of 2.0 A flows through the primary.

A step-up transformer has transformation ratio of 3:2 what is the voltage in secondary if voltage in primary is 30V ?