Electronic Principles The merging of a free electron and a hole is called Thermal energy Recombination None of these Covalent bonding Lifetime Thermal energy Recombination None of these Covalent bonding Lifetime ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Lost an electron Gained a proton None of these Lost a proton Gained an electron Lost an electron Gained a proton None of these Lost a proton Gained an electron ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? 250 Ohm 60 Ohm 70.7Ohm None of these 99.3 Ohm 250 Ohm 60 Ohm 70.7Ohm None of these 99.3 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: None of these their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency their waveforms are both ac or both dc None of these their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency their waveforms are both ac or both dc ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.3 A 0.4 A 0.2 A 0.6 A None of these 0.3 A 0.4 A 0.2 A 0.6 A 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? 14.8 µA 10.3 µA 7.8 µA 7.75 µA None of these 14.8 µA 10.3 µA 7.8 µA 7.75 µA None of these ANSWER DOWNLOAD EXAMIANS APP
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