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Electronic Principles

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

37.4 V
35.4 V
38.74 V
None of these
30.4 V

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Electronic Principles
Holes are the minority carriers in which type of semiconductor?

n-type
Intrinsic
p-type
None of these
Extrinsic

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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?

7.8 µA
14.8 µA
None of these
7.75 µA
10.3 µA

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

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

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Electronic Principles
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

P = PR
I = P/E
R = E2/P
P = E2/R
None of these

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Electronic Principles
The direction of electron current flow is:

from right to left
from positive to negative
from neutral to positive
from negative to positive
None of these

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