EEE :: Transformers

What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV?

When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is

If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ?

A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is

The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8?

If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is

A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, R_{L}, is 120 . What is the approximate voltage across the load?