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? 250 µA 300 µA None of these 350 µA 0.25 µA 250 µA 300 µA None of these 350 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: All of these their waveforms cross through zero and reach positive and negative peaks at the same time None of these their waveforms are both ac or both dc they have the same amplitude and frequency All of these their waveforms cross through zero and reach positive and negative peaks at the same time None of these their waveforms are both ac or both dc they have the same amplitude and frequency 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? 34.4 mA 68.4 mA None of these 28.4 mA 24.2 mA 34.4 mA 68.4 mA None of these 28.4 mA 24.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: solar cell None of these thermocouple piezoelectric devices chemical cell solar cell None of these thermocouple piezoelectric devices chemical cell ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts chemical energy to electrical energy is called a: chemical cell None of these electric device solar cell thermocouple chemical cell None of these electric device solar cell thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? Wattmeter Voltmeter Ammeter None of these Ohmmeter Wattmeter Voltmeter Ammeter None of these Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
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