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Electronic Principles

Electronic Principles
A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current?

3.2 mA
None of these
13 mA
0.05 mA
3.75 mA

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Electronic Principles
The saturation point is approximately the same as

upper end of the load line
lower end of the load line
cutoff point
infinity
None of these

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

Reluctance
Permeability
Permeance
Retentivity
There is no valid comparison

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Electronic Principles
To get the Thevenin voltage, you have to

Short the load resistor
Short the voltage source
None of these
Open the voltage source
Open the load resister

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Electronic Principles
If a load resistance is 1 kW, a stiff current source has a resistance of

Less than 10 Ohm
None of these
More than 100 k Ohm
At least 10 Ohm
Less than 100 k Ohm

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

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

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