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Electronic Principles

Electronic Principles
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?

120 V
None of these
180 V
170 V
100 V

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Electronic Principles
If the current gain is 200 and the collector current is 100 mA, the base current is

200 A
None of these
2 mA
0.5 mA
0.083333333333333

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

solar cell
generator
thermocouple
None of these
chemical cell

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

solar cell
piezoelectric device
nicad cell
photodiode
None of these

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Electronic Principles
Which one of the following kinds of materials has the lowest permeability?

A paramagnetic material
None of these
A feiTomagnetic material
A diamagnetic material
All of these

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Electronic Principles
Inductive reactance is measured in units of:

Ohm
None of these
volts per second
amperes per second
henrys

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