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Electronic Principles

Electronic Principles
How many types of flow are there in a semiconductor?

1
None of these
2
3

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Electronic Principles
Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff?

50 Ohm or more
100 Ohm
5 Ohm
None of these
6 Ohm

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Electronic Principles
What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm

180 degree
30 degree
None of these
75 degree
45 degree

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Electronic Principles
Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?

None of these
200 k Ohm or more
20 k Ohm or more
200 k Ohm or less
20 km or less

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

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

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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?

None of these
707 V
700 V
208 V
651 V

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