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Electronic Principles

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

solar cell
thermocouple
photodiode
photo transistor
None of these

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Electronic Principles
The value of a capacitor can be made larger by:

None of these
increasing the frequency of the applied voltage
decreasing the area of the plates
increasing the area of the plates
increasing the voltage applied to the plates

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Electronic Principles
If a load resistance is 1 kW, a stiff voltage source has a resistance of

At least 10 Ohm
None of these
Less than 100 k Ohm
less than 10 Ohm
More than 100 k Ohm

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Electronic Principles
A transistor has how many doped regions?

4
3
None of these
1
2

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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
3 V
7.5 V
16 V
8 V

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Electronic Principles
The equivalent of 1 micro A is:

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

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