Electronic Principles What is one important thing transistors do? Regulate voltage None of these Rectify line voltage Emit light Amplify weak signals Regulate voltage None of these Rectify line voltage Emit light Amplify weak signals 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? None of these 7.8 µA 10.3 µA 14.8 µA 7.75 µA None of these 7.8 µA 10.3 µA 14.8 µA 7.75 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The current gain of a transistor is defined as the ratio of the collector current to the base current collector current None of these emitter current supply current base current collector current None of these emitter current supply current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Magnetomotive force None of these Reluctance Number of lines of force Flux density Magnetomotive force None of these Reluctance Number of lines of force Flux density 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? None of these Ammeter Wattmeter Voltmeter Ohmmeter None of these Ammeter Wattmeter Voltmeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: an artificial magnet a natural magnet a temporary magnet None of these a paramagnetic alloy an artificial magnet a natural magnet a temporary magnet None of these a paramagnetic alloy ANSWER DOWNLOAD EXAMIANS APP
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