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QUESTIONS

Electronic Principles
What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?

60 Ohm
99.3 Ohm
70.7Ohm
250 Ohm
None of these

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Electronic Principles
Current can flow through a normally open push button switch as long as:

None of these
you are not pressing the button
its contact remain open
you are pressing the button
its contact remain open

ANSWER DOWNLOAD EXAMIANS APP

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

None of these
has no effect on the total circuit current
cuts the total current by one-half
doubles the amount of total current
thrice the amount of total current

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Electronic Principles
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?

None of these
0.151 mA
2.02 A
157 raA
0.995 mA

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?

34.4 mA
24.2 mA
None of these
68.4 mA
28.4 mA

ANSWER DOWNLOAD EXAMIANS APP
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