Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature 0oC None of these Stays the same Increases Decreases 0oC None of these Stays the same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 30 Ohm 60 Ohm None of these 754 Ohm 120 Ohm 30 Ohm 60 Ohm None of these 754 Ohm 120 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Who invented the first junction transistor? Gomes Smith Fisher Shockley None of these Gomes Smith Fisher Shockley 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: None of these from 10% of the peak value to 70.7% of the peak value from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value None of these from 10% of the peak value to 70.7% of the peak value from zero to its rms value from zero to its peak value from 10% of the peak value to 90% of the peak value 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 700 V 208 V 707 V 651 V None of these 700 V 208 V 707 V 651 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern None of these that would be repelled by the south pole of another magnet that would be attracted to the earth's north magnetic pole that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern None of these that would be repelled by the south pole of another magnet ANSWER DOWNLOAD EXAMIANS APP
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