Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 9 6 85 None of these 81 9 6 85 None of these 81 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Waveforms are graphs that show: amplitude on the vertical axis and frequency on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these amplitude on the vertical axis and frequency on the horizontal axis amplitude on the vertical axis and the passage of time on the horizontal axis the passage of time on the vertical axis and amplitude on the horizontal axis frequency on the vertical axis and amplitude on the horizontal axis None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When a parallel RLC circuit is operating at its resonant frequency: inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance inductive reactance is greater than the capacitive reactance inductive reactance is equal to the capacitive reactance None of these capacitive reactance is greater than the inductive reactance the difference between inductive and capacitive reactance is equal to the resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the base supply voltage increases, the Q point moves off the load line up nowhere down None of these off the load line up nowhere down None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: None of these round off both the voltage and current waveforms peak the current and round off the voltage waveforms peak both the voltage and current waveforms peak the voltage and round off the current waveforms None of these round off both the voltage and current waveforms peak the current and round off the voltage waveforms peak both the voltage and current waveforms peak the voltage and round off the current waveforms ANSWER DOWNLOAD EXAMIANS APP
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