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Electronic Principles

Electronic Principles
Which is the most widely used semiconductor?

None of these
Copper
Germanium
Silicon
All of these

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Electronic Principles
If the base supply voltage increases, the Q point moves

off the load line
down
None of these
up
nowhere

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Electronic Principles
What is one important thing transistors do?

None of these
Regulate voltage
Rectify line voltage
Amplify weak signals
Emit light

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

solar cell
piezoelectric devices
None of these
chemical cell
thermocouple

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Electronic Principles
What is the smallest number of polarities required for current flow?

None of these
One - a negative terminal
Two - a negative terminal and a positive terminal
Three - negative, positive and neutral terminals
Four - two negative and two positive

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Electronic Principles
Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode

None of these
10 mA
12 mA
11 mA
14 mA

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