Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = IE None of these P = E2/R P = I2R I = P/E P = IE None of these P = E2/R P = I2R I = P/E ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the lowest permeability? A paramagnetic material A diamagnetic material A feiTomagnetic material All of these None of these A paramagnetic material A diamagnetic material A feiTomagnetic material All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude the number of cycles completed in one second equal to 0.707 times the peak amplitude None of these the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude the number of cycles completed in one second equal to 0.707 times the peak amplitude None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? None of these 24 V 4.73 600 V 0.4 V None of these 24 V 4.73 600 V 0.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 0.3V 0.7V 1 V 2 m V per degree Celsius None of these 0.3V 0.7V 1 V 2 m V per degree Celsius None of these ANSWER DOWNLOAD EXAMIANS APP
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 700 V 651 V 707 V None of these 208 V 700 V 651 V 707 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS