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Electronic Principles

Electronic Principles
The equivalent of 1 micro A is:

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

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Electronic Principles
Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field?

Out of this page
Into this page
None of these
Clockwise
Counterclockwise

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Electronic Principles
What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?

3890 Ohm
1234 Ohm
844.5 Ohm
None of these
692.2 Ohm

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

solar cell
photodiode
thermocouple
None of these
photo transistor

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Electronic Principles
A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?

410 Ohm
550 Ohm
None of these
400 Ohm
310 Ohm

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Electronic Principles
A device that converts mechanical into electrical energy is?

chemical cell
solar cell
None of these
thermocouple
generator

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