Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 81 85 None of these 6 9 81 85 None of these 6 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = E/R E = PR E = I2R I = ER None of these I = E/R E = PR E = I2R I = ER None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals increases the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals None of these has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 77.7 ohm 89.3 ohm 88.8 ohm 224 ohm None of these 77.7 ohm 89.3 ohm 88.8 ohm 224 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? I = P/E P = E2/R None of these P = PR R = E2/P I = P/E P = E2/R None of these P = PR R = E2/P ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle the number of cycles completed in one second None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the time required to complete one full cycle the number of cycles completed in one second None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS