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Electronic Principles

Electronic Principles
What kind of device is a diode?

Bilateral
Nonlinear
Linear
Unipolar
None of these

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Electronic Principles
The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the:

rotor
armature
None of these
commutator
battery

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Electronic Principles
Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current?

0.3 A
None of these
0.6 A
0.2 A
0.4 A

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

None of these
7.5 V
8 V
3 V
16 V

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Electronic Principles
The barrier potential accross each depletion layer is

None of these
20 V
0.8 V
0.7 V

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Electronic Principles
What is the algebraic sum of this series of values:+2, -3, -6,+4?

None of these
-3
2
-6

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