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 350 µA 300 µA None of these 0.25 µA 250 µA 350 µA 300 µA None of these 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? All of these Current lags the voltage through a resistor Current leads the voltage through a resistor Current and voltages are in phase through a resistor None of these All of these Current lags the voltage through a resistor Current leads the voltage through a resistor Current and voltages are in phase through a resistor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 7.8 mA 200 mA 300 mA None of these 208 mA 7.8 mA 200 mA 300 mA None of these 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that costs nothing None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge An electron that has been freed from its parent atom An electron that costs nothing None of these An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge An electron that has been freed from its parent atom ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to Open the voltage source Short the load resistor Short the voltage source None of these Open the load resister Open the voltage source Short the load resistor Short the voltage source None of these Open the load resister 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 = IE P = I2R None of these I = P/E P = E2/R P = IE P = I2R None of these I = P/E P = E2/R ANSWER DOWNLOAD EXAMIANS APP
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