Electronic Principles
A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding?

4.73
600 V
24 V
None of these
0.4 V

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Electronic Principles
What is a free electron?

An electron that costs nothing
An electron that has been freed from its parent atom
An electron that has twice the amount of charge of a normal electron
None of these
An electron that has no electrical charge

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Electronic Principles
Which one of the following statements is true for current flowing in a series circuit?

The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
The total current in a series circuit is equal to the total voltage multiplied by the total resistance
The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
The same current flows through every part of a series circuit
None of these

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