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Electronic Principles

Electronic Principles
How much current flows through a 60-W light bulb that is operating at 120 V?

0.5A
0.083333333333333
7200 A
180 A
None of these

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

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

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Electronic Principles
The nucleus of the copper atom contains how many protons?

18
4
1
None of these
29

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Electronic Principles
The Thevenin resistance is equal in value to the

Load resistance
Internal resistance of a Morton circuit
None of these
Open-load resistance
Half the load resistance

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Electronic Principles
What is the barrier potential of a silicon diode at room temperature?

1 V
0.3V
0.7V
None of these
2 m V per degree Celsius

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Electronic Principles
The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current?

7.75 µA
14.8 µA
7.8 µA
10.3 µA
None of these

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