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 The rise time of a pulse waveform is the time required for the voltage to rise: from zero to its peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value from 10% of the peak value to 90% of the peak value None of these from zero to its peak value from zero to its rms value from 10% of the peak value to 70.7% of the peak value from 10% of the peak value to 90% of the peak value None of these 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? None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 7.8 mA 200 mA 300 mA 208 mA None of these 7.8 mA 200 mA 300 mA 208 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the algebraic sum of this series of values:+2, -3, -6,+4? -6 -3 2 None of these -6 -3 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 80 W 0.24 W None of these 325 kW 0.625 W 80 W 0.24 W None of these 325 kW 0.625 W ANSWER DOWNLOAD EXAMIANS APP
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