Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 9 85 81 None of these 6 9 85 81 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: the amplitude at 1.41 times the maximum value the maximum positive or negative value the amplitude at 70.7% of the maximum value None of these the amplitude at 90% of the maximum value the amplitude at 1.41 times the maximum value the maximum positive or negative value the amplitude at 70.7% of the maximum value None of these the amplitude at 90% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: multiplies the capacitive reactance by 6.28 doubles the amount of a capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance None of these multiplies the capacitive reactance by 6.28 doubles the amount of a capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Decreases 0oC Increases Stays the same None of these Decreases 0oC Increases Stays the same None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.575 None of these 10.738 1.5 0.707 0.575 None of these 10.738 1.5 0.707 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm 180 degree 30 degree 75 degree None of these 45 degree 180 degree 30 degree 75 degree None of these 45 degree ANSWER DOWNLOAD EXAMIANS APP
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