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Electronic Principles

Electronic Principles
The equivalent of 1 micro A is:

1000 A
10000A
one-millionth of an ampere
one million amperes
None of these

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Electronic Principles
What is one important thing transistors do?

None of these
Emit light
Rectify line voltage
Regulate voltage
Amplify weak signals

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Electronic Principles
If the base supply voltage increases, the Q point moves

up
nowhere
None of these
off the load line
down

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Electronic Principles
Doubling the operating voltage of a purely capacitive circuit:

multiplies the capacitive reactance by 7
doubles the amount of capacitive reactance
cuts the capacitive reactance in half
None of these
has no effect on the capacitive reactance

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Electronic Principles
Reducing the amount of current through an inductor:

reduces the value of inductance by one-half
None of these
multiplies the value of inductance by four
has no effect on the inductance
multiplies the value of inductance by two

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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?

None of these
13 mA
3.2 mA
0.05 mA
3.75 mA

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