Transformers - General Questions (2)

A certain amplifier has 600  internal resistance looking from its output. In order to provide maximum power to a 4  speaker, what turns ratio must be used in the coupling transformer?

The primary winding of a power transformer should always be

The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330  load. The turns ratio is 3:1. What is the secondary voltage?

A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is

In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is

How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V?

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?

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