CSE :: Electronic Principles
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Which is the most widely used semiconductor?
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The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?
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An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?
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Which one of the following statements is true?
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An audio transformer has a turn ratio of 9, What is its impedance ratio?
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Which one of the following statements is true?
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How many protons does the nucleus of a silicon atom contain?
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A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
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The emitter diode is usually
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A.
Power dissipation of a pure inductor decreases with operating frequency
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B.
Power dissipation of a pure inductor is at a maximum for dc source voltages
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C.
Power dissipation of a pure inductor increases with operating frequency
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D.
There is no meaningful relationship between the power dissipation of a pure inductor and its operating frequency
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E.
None of the above
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A.
The secondary voltage for a step-down power transformer is greater than the primary voltage
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B.
The secondary current for a step-down power transformer is greater than the primary voltage
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C.
Parallel RLC circuit operated below its resonant frequency
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D.
purely resistive circuit
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E.
None of the above
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