Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: None of these from 10% of the peak value to 90% of the peak value from zero to its peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value None of these from 10% of the peak value to 90% of the peak value from zero to its peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by two multiplies the value of inductance by four has no effect on the inductance None of these reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four has no effect on the inductance None of these reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 200 mA None of these 300 mA 7.8 mA 208 mA 200 mA None of these 300 mA 7.8 mA 208 mA 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 None of these Less than 100 k Ohm At least 10 Ohm less than 10 Ohm More than 100 k Ohm None of these Less than 100 k Ohm At least 10 Ohm less than 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these The ac voltage leads the current by 90 degree Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow Combinations of resistance and capacitive reactance provide any opposition to current flow None of these The ac voltage leads the current by 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How may valence electrons does a silicon atom have? 1 2 None of these 4 1 2 None of these 4 ANSWER DOWNLOAD EXAMIANS APP
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