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General Knowledge
Verbal Reasoning
Computer Science
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Transformers
The transformer turns ratio determines
the ratio of primary and secondary voltages
the ratio of primary and secondary currents
the reflected impedance
all of the above
Correct Answer:
all of the above
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Transformers
In the given circuit, the secondary voltage is in phase with the primary voltage.
Regardless of whether the transformer is step-up or step-down, power in the primary equals the power in the secondary if there is 100% efficiency.
The reflected load value that the source sees will always be larger than the load value itself.
If the current drawn in the secondary of a transformer increases, the power in the primary should remain the same.
The secondary voltages produced by a center-tapped transformer are equal in amplitude but 180° out of phase with respect to the center tap.
An open secondary winding of a transformer will cause the primary current to be nearly zero.
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.
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