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Electronic Principles

Electronic Principles
The barrier potential accross each depletion layer is

0.8 V
0.7 V
20 V
None of these

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Electronic Principles
A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

8 V
None of these
7.5 V
16 V
15 V

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Electronic Principles
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?

220 ohm
None of these
445 ohm
690 ohm
150 ohm

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Electronic Principles
In an intrinsic semiconductor, the number of free electrons

None of these
Impossible to say
Equals the number of holes
Is less than the number of holes
Is greater than the number of holes

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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?

157 raA
2.02 A
None of these
0.151 mA
0.995 mA

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Electronic Principles
In a step-down transformer, which is larger?

Impossible to say
Primary voltage
None of these
Neither
Secondary voltage

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