Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Decreases Increases 0oC None of these Stays the same Decreases Increases 0oC None of these Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called Lifetime Thermal energy Covalent bonding Recombination None of these Lifetime Thermal energy Covalent bonding Recombination None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: None of these All of these they have the same amplitude and frequency their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time None of these All of these they have the same amplitude and frequency their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? All of these Power dissipation of a pure capacitor decreases with operating frequency Power dissipation of a pure capacitor increases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency None of these All of these Power dissipation of a pure capacitor decreases with operating frequency Power dissipation of a pure capacitor increases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 28.4 mA 68.4 mA None of these 24.2 mA 34.4 mA 28.4 mA 68.4 mA None of these 24.2 mA 34.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 550 Ohm 400 Ohm None of these 310 Ohm 410 Ohm 550 Ohm 400 Ohm None of these 310 Ohm 410 Ohm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS