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Electronic Principles

Electronic Principles
The equivalent of 1 micro A is:

1000 A
None of these
one million amperes
one-millionth of an ampere
10000A

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Electronic Principles
The Norton current is sometimes called the

None of these
Shorted-load current
Thevenin voltage
Open-load current
Thevenin current

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

Valence orbit
Crystal
Covalent bond
Semiconductor
None of these

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Electronic Principles
What is the turns ratio for the transformer specified in the above question?

1.5
0.575
10.738
None of these
0.707

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Electronic Principles
A device that converts light energy to electrical energy is called a:

thermocouple
None of these
photo transistor
photodiode
solar cell

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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?

None of these
0.4 A
0.6 A
0.3 A
0.2 A

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