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?

600 V
4.73
None of these
24 V
0.4 V

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Electronic Principles
Which one of the following is a direct statement of Ohm's law?

The algebraic sum of currents entering and leaving a point is equal to zero
None of these
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of voltages in a loop is equal to zero
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it

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