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

chemical cell
piezoelectric devices
thermocouple
None of these
solar cell

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

dissipating 1 W of power
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
None of these
storing 1 V for 1 second

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Electronic Principles
When a parallel RLC circuit is operating at its resonant frequency:

the difference between inductive and capacitive reactance is equal to the resistance
inductive reactance is equal to the capacitive reactance
inductive reactance is greater than the capacitive reactance
capacitive reactance is greater than the inductive reactance
None of these

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