Electrical Engineering - Transformers
Exercise : Transformers - General Questions
- Transformers - General Questions
- Transformers - True or False
16.
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?
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?17.
A transformer
18.
The primary of a transformer is connected to a 6 V battery. The turns ratio is 1:3 and the secondary load, RL, is 100 . The voltage across the load is
. The voltage across the load is19.
To step 120 V ac up to 900 V ac, the turns ratio must be
20.
When a 200 load resistor is connected across the secondary winding of a transformer with a turns ratio of 4, the source "sees" a reflective load of
load resistor is connected across the secondary winding of a transformer with a turns ratio of 4, the source "sees" a reflective load of50
12.5
800
0
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