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
nowhere
None of these
down
off the load line

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Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is a force that tends to overcome the effects of counter emf
None of these
Inductive reactance is another term for counter emf
Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is an opposition to current flow in ac circuits

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Electronic Principles
The total inductance of a series inductor circuit is:

equal to the sum of the individual inductive-reactance values
None of these
equal to the source voltage divided by total current
less than the value of the smallest inductor
equal to the sum of the individual inductance values

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

None of these
Resistances provide the only opposition to current flow
Inductive reactance provides the only opposition to current flow
Combinations of resistance and inductive reactance provide any opposition to current flow
The ac voltage lags the current by 90 degree

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