Electronic Principles What is the difference between a conductor and an insulator? A conductor allows current to flow much easier than an insulator does The difference between conductors and insulators depends on how they are used None of these An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all An insulator allows current to flow much easier than a conductor does A conductor allows current to flow much easier than an insulator does The difference between conductors and insulators depends on how they are used None of these An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all An insulator allows current to flow much easier than a conductor does ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Stays the same Decreases 0oC Increases None of these Stays the same Decreases 0oC Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 1590 Ohm 312 Ohm None of these 690 Ohm less than 1 Ohm 1590 Ohm 312 Ohm None of these 690 Ohm less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W? 3890 Ohm 1234 Ohm None of these 844.5 Ohm 692.2 Ohm 3890 Ohm 1234 Ohm None of these 844.5 Ohm 692.2 Ohm 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 14.8 µA 7.8 µA 10.3 µA 7.75 µA None of these 14.8 µA 7.8 µA 10.3 µA 7.75 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? None of these 7.8 mA 208 mA 200 mA 300 mA None of these 7.8 mA 208 mA 200 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
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