Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 0.25 µA 250 µA None of these 300 µA 350 µA 0.25 µA 250 µA None of these 300 µA 350 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time All of these None 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 All of these None of these they have the same amplitude and frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? There is no valid comparison Permeance Retentivity Reluctance Permeability There is no valid comparison Permeance Retentivity Reluctance Permeability ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The valence electron of a copper atom experiences what kind of attraction toward the nucleus? Weak None of these Impossible to say Strong Neutral Weak None of these Impossible to say Strong Neutral ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Voltmeter Ohmmeter Ammeter Wattmeter None of these Voltmeter Ohmmeter Ammeter Wattmeter None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? None of these Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal Four - two negative and two positive One - a negative terminal None of these Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal Four - two negative and two positive One - a negative terminal ANSWER DOWNLOAD EXAMIANS APP
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