Electronic Principles
The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor?

300 µA
None of these
0.25 µA
350 µA
250 µA

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

None of these
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
The current through a resistance is proportional to the value of resistance and the IR drop across it
The algebraic sum of currents in a loop is equal to zero

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

The total voltage of a parallel circuit is the same as the voltages across each branch
The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit
The total voltage in a parallel circuit is equal to the average value of the individual voltages
None of these
The total voltage in a parallel circuit is always less than the value of the smallest voltage

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Electronic Principles
The rms value of a sine waveform is:

equal to 1.41 times the peak amplitude
the number of cycles completed in one second
the time required to complete one full cycle
None of these
equal to 0.707 times the peak amplitude

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