Electronic Principles What is a free electron? An electron that has no electrical charge An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron An electron that costs nothing None of these An electron that has no electrical charge An electron that has been freed from its parent atom An electron that has twice the amount of charge of a normal electron An electron that costs nothing None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts light energy to electrical energy is called a: photo transistor None of these solar cell thermocouple photodiode photo transistor None of these solar cell thermocouple photodiode ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 445 ohm 220 ohm 150 ohm 690 ohm None of these 445 ohm 220 ohm 150 ohm 690 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? None of these 3.75 mA 3.2 mA 13 mA 0.05 mA None of these 3.75 mA 3.2 mA 13 mA 0.05 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Neither None of these Secondary voltage Impossible to say Primary voltage Neither None of these Secondary voltage Impossible to say Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being consumed at the secondary winding of the transformer described in question 91? None of these 100 W 200 W 20 W 1000 W None of these 100 W 200 W 20 W 1000 W ANSWER DOWNLOAD EXAMIANS APP
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