Electronic Principles What is one important thing transistors do? Rectify line voltage Amplify weak signals Regulate voltage Emit light None of these Rectify line voltage Amplify weak signals Regulate voltage Emit light None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: the amplitude at 70.7% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value None of these the amplitude at 70.7% of the maximum value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: piezoelectric devices thermocouple solar cell chemical cell None of these piezoelectric devices thermocouple solar cell chemical cell None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? None of these An electron that has no electrical charge An electron that costs nothing An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron None of these An electron that has no electrical charge An electron that costs nothing An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? I = P/E None of these P = E2/R P = IE P = I2R I = P/E None of these P = E2/R P = IE P = I2R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely inductive circuit: increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit doubles the amount of current through the inductors has no effect on the current through the inductors cuts the current through the inductors one-half None of these increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit doubles the amount of current through the inductors has no effect on the current through the inductors cuts the current through the inductors one-half None of these ANSWER DOWNLOAD EXAMIANS APP
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