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General Knowledge
Verbal Reasoning
Computer Science
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Transformers
An open secondary winding of a transformer will cause the primary current to be nearly zero.
True
Correct Answer:
True
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Transformers
If voltage is stepped-up to the secondary, current will be stepped-down by the same amount.
A transformer that has 700 turns in the primary and 35 turns in the secondary has a turns ratio of 20:1.
In the given circuit, Maximum power is being transferred to the load.
For mutual inductance to occur, the two coils must be at right angles to each other.
A transformer turns ratio of ________ will be needed to match an output impedance of 5 kΩ to an 8 Ω speaker.
___ is the concept of one coil inducing a voltage into another coil.
The secondary current is _____ in the given circuit.
A step-up transformer will ___ to the secondary.
___ occurs in a transformer when some of the primary flux lines pass through the air instead of the core.
Making the load resistance appear the same as the source's internal resistance is called _____.
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