Electronic Principles
The graph of current gain versus collector current indicates that the current gain

None of these
varies slightly
is contant
equals the collector current divided by the base current
varies enormously

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Electronic Principles
Current is

The number of free electrons in an atom
An imbalance of electrical charges
The force that causes electrons to flow
The flow of charged particles through a material
None of these

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Electronic Principles
Which one of the following is a statement of Kirchhoffs current law?

The algebraic sum of currents in a loop is equal to zero
None of these
The current through a resistance is proportional to the value of resistance and the IR drop across it
The total current in a parallel circuit is less than the value of the smallest current
The algebraic sum of currents entering and leaving a point is equal to zero

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