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Electronic Principles

Electronic Principles
What is the barrier potential of a silicon diode at room temperature?

0.3V
1 V
None of these
0.7V
2 m V per degree Celsius

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Electronic Principles
If a transistor operates at the middle of the load line, an increase in the current gain will move the Q point

nowhere
down
None of these
off the load line
up

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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?

310 Ohm
400 Ohm
410 Ohm
550 Ohm
None of these

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Electronic Principles
When operating below its resonant frequency, a series RLC circuit has the characteristics of a:

series RLC circuit operated above its resonant frequency
series RC circuit
purely resistive circuit
None of these
series RL circuit

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Electronic Principles
At room temperature an intrinsic silicon crystal acts approximately like

a piece of copper wire
a battery
a conductor
an insulator
None of these

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Electronic Principles
A dielectric material is:

a good conductor of magnetic fields
a good conductor
a good insulator
a poor conductor of electrostatic fields
None of these

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