Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Increases None of these Decreases 0oC Stays the same Increases None of these Decreases 0oC Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when the core material is saturated ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current One-half the primary current Twice the primary current None of these No more than 10% less than the primary current Same as the primary current One-half the primary current Twice the primary current None of these No more than 10% less than the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts light energy to electrical energy is called a: solar cell thermocouple photo transistor photodiode None of these solar cell thermocouple photo transistor photodiode None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total inductance of a series inductor circuit is: None of these equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values less than the value of the smallest inductor equal to the source voltage divided by total current None of these equal to the sum of the individual inductive-reactance values equal to the sum of the individual inductance values less than the value of the smallest inductor equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? None of these 150 ohm 445 ohm 220 ohm 690 ohm None of these 150 ohm 445 ohm 220 ohm 690 ohm ANSWER DOWNLOAD EXAMIANS APP
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