Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? None of these 208 V 651 V 707 V 700 V None of these 208 V 651 V 707 V 700 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: None of these decreasing the area of the plates increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates None of these decreasing the area of the plates increasing the area of the plates increasing the frequency of the applied voltage increasing the voltage applied to the plates ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: chemical cell thermocouple solar cell piezoelectric devices None of these chemical cell thermocouple solar cell piezoelectric devices None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: from 10% of the peak value to 90% of the peak value from 10% of the peak value to 70.7% of the peak value from zero to its peak value None of these from zero to its rms value from 10% of the peak value to 90% of the peak value from 10% of the peak value to 70.7% of the peak value from zero to its peak value None of these from zero to its rms value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of None of these At least 10 Ohm More than 100 k Ohm Less than 100 k Ohm Less than 10 Ohm None of these At least 10 Ohm More than 100 k Ohm Less than 100 k Ohm Less than 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RC circuit? None of these The total current is less than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current. is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these The total current is less than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current. is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
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