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
Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf 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 the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely inductive circuit? Combinations of resistance and inductive reactance provide any opposition to current flow None of these Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree Combinations of resistance and inductive reactance provide any opposition to current flow None of these Inductive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage lags the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like a battery an insulator a conductor None of these a piece of copper wire a battery an insulator a conductor None of these a piece of copper wire ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of More than 100 k Ohm Less than 100 k Ohm At least 10 Ohm None of these less than 10 Ohm More than 100 k Ohm Less than 100 k Ohm At least 10 Ohm None of these less than 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second the time required for the voltage to rise from 10% to 90% of the peak amplitude the time required to complete one full cycle equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second the time required for the voltage to rise from 10% to 90% of the peak amplitude the time required to complete one full cycle ANSWER DOWNLOAD EXAMIANS APP
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