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? 700 V None of these 651 V 208 V 707 V 700 V None of these 651 V 208 V 707 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a: parallel RC circuit None of these purely resistive circuit parallel RLC circuit operated above its resonant frequency parallel RL circuit parallel RC circuit None of these purely resistive circuit parallel RLC circuit operated above its resonant frequency parallel RL circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 30.4 V 38.74 V 35.4 V 37.4 V None of these 30.4 V 38.74 V 35.4 V 37.4 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: the amplitude at 70.7% of the maximum value None of these the maximum positive or negative value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value the amplitude at 70.7% of the maximum value None of these the maximum positive or negative value the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.75 µA 7.8 µA 10.3 µA 14.8 µA None of these 7.75 µA 7.8 µA 10.3 µA 14.8 µA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff? 20 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less 20 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less ANSWER DOWNLOAD EXAMIANS APP
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