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Electronic Principles

Electronic Principles
The equivalent of 1 kV is:

1000 V
None of these
100 mV
1000 mV
1.00 V

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Electronic Principles
A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage?

700 V
None of these
651 V
707 V
208 V

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Electronic Principles
An audio transformer has a turn ratio of 9, What is its impedance ratio?

85
81
6
None of these
9

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Electronic Principles
What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?

3890 Ohm
None of these
844.5 Ohm
1234 Ohm
692.2 Ohm

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Electronic Principles
Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91?

100 W
1000 W
20 W
None of these
200 W

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?

Number of lines of force
Flux density
None of these
Reluctance
Magnetomotive force

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