Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? None of these Voltmeter Wattmeter Ammeter Ohmmeter None of these Voltmeter Wattmeter Ammeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A battery is a device composed of one or more: solar cells voltage generators piezoeletric cells None of these chemical cells solar cells voltage generators piezoeletric cells None of these chemical cells ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated None of these Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
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? 350 µA 250 µA None of these 300 µA 0.25 µA 350 µA 250 µA None of these 300 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W? 3890 Ohm None of these 1234 Ohm 692.2 Ohm 844.5 Ohm 3890 Ohm None of these 1234 Ohm 692.2 Ohm 844.5 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? P = I2R None of these P = E2/R I = P/E P = IE P = I2R None of these P = E2/R I = P/E P = IE ANSWER DOWNLOAD EXAMIANS APP
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