Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance? P = I2R P = IE I = P/E None of these P = E2/R P = I2R P = IE I = P/E None of these P = E2/R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.25 180 0.5 None of these 4 0.25 180 0.5 None of these 4 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Amplify weak signals None of these Regulate voltage Emit light Rectify line voltage Amplify weak signals None of these Regulate voltage Emit light Rectify line voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? None of these 0.7V 1 V 2 m V per degree Celsius 0.3V None of these 0.7V 1 V 2 m V per degree Celsius 0.3V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the graph of current versus voltage is a straight line, the device is referred to as Bipolar Nonlinear Linear None of these Active Bipolar Nonlinear Linear None of these Active ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals None of these reduces the level of all frequencies by a significant amount has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals None of these reduces the level of all frequencies by a significant amount has no effect on ac signals ANSWER DOWNLOAD EXAMIANS APP
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