Electronic Principles
The current gain of a transistor is defined as the ratio of the collector current to the

collector current
None of these
emitter current
supply current
base current

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Electronic Principles
What is the difference between a conductor and an insulator?

None of these
The difference between conductors and insulators depends on how they are used
An insulator allows current to flow much easier than a conductor does
A conductor allows current to flow much easier than an insulator does
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all

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Electronic Principles
The total capacitive reactance of a parallel capacitor circuit is:

equal to the sum of the individual capacitive-reactance values
equal to the source voltage divided by total current
less than the capacitance value of the smallest capacitor
equal to the sum of the individual capacitance values
None of these

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Electronic Principles
Which one of the following statements is true for the currents in a parallel RL circuit?

The total current is equal to the sum of the currents through the resistance and inductance
The total current leads the total voltage by less than 90
None of these
The current always has the same amplitude and phase for every part of the circuit
The total current is less than the sum of the currents through the resistance and inductance

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