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Electronic Principles

Electronic Principles
What is the turns ratio for the transformer specified in the above question?

0.707
1.5
10.738
None of these
0.575

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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
1234 Ohm
692.2 Ohm
None of these
844.5 Ohm

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Electronic Principles
In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point

up
off the load line
nowhere
None of these
down

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Electronic Principles
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:

parallel RL circuit
purely resistive circuit
parallel RC circuit
None of these
parallel RLC circuit operated above its resonant frequency

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Electronic Principles
Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current?

0.6 A
0.3 A
0.4 A
None of these
0.2 A

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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?

200 W
100 W
1000 W
None of these
20 W

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