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Electronic Principles

Electronic Principles
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

35.4 V
38.74 V
30.4 V
37.4 V
None of these

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Electronic Principles
For normal operation of the transistor, the collector diode has to be

Forward-biased
Operating in the breakdown region
Nonconducting
None of these
Reverse-biased

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Electronic Principles
Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?

E = I2R
None of these
I = ER
I = E/R
E = PR

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Electronic Principles
A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current?

0.05 mA
3.75 mA
3.2 mA
None of these
13 mA

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Electronic Principles
Doubling the number of turns of wire in an inductor:

multiplies the value of inductance by four
reduces the value of inductance by one-fourth
reduces the value of inductance by one-half
multiplies the value of inductance by two
None of these

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Electronic Principles
When operating above its resonant frequency, a series RLC circuit has the characteristics of a:

None of these
series RL circuit
purely resistive circuit
series RLC circuit operated below its resonant frequency
series RC circuit

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