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

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

dissipating 1 W of power
None of these
storing 1 V for 1 second
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
causing an ac phase shift greater than 90 degree

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Electronic Principles
Which one of the following statements is true for the impedance of a series RC circuit?

The impedance is greater than either the resistance or capacitive reactance but less than their sum
None of these
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is equal to the sum of the resistance and capacitive reactance
The impedance is less than the sum of the resistance and capacitive reactance

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