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Electronic Principles

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

photo transistor
None of these
solar cell
thermocouple
photodiode

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Electronic Principles
If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?

40 V
None of these
60 V
0 V
36 V

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Electronic Principles
What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?

0 degree
None of these
26.6 degree
180 degree
90 degree

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

thermocouple
None of these
generator
solar cell
chemical cell

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Electronic Principles
The graph of current gain versus collector current indicates that the current gain

varies slightly
varies enormously
equals the collector current divided by the base current
None of these
is contant

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Electronic Principles
When the graph of current versus voltage is a straight line, the device is referred to as

Linear
None of these
Nonlinear
Active
Bipolar

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