Electronic Principles Most AC power is obtained from: generators batteries lightning None of these oscillators generators batteries lightning None of these oscillators 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? 0.05 mA None of these 3.75 mA 13 mA 3.2 mA 0.05 mA None of these 3.75 mA 13 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage? None of these 16 V 3 V 7.5 V 8 V None of these 16 V 3 V 7.5 V 8 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: multiplies the inductive reactance by 6.28 has no effect on the inductive reactance doubles the amount of inductive reactance cuts the inductive reactance in half None of these multiplies the inductive reactance by 6.28 has no effect on the inductive reactance doubles the amount of inductive reactance cuts the inductive reactance in half None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 30 V 12 V 18 V 24 V None of these 30 V 12 V 18 V 24 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely inductive circuit: has no effect on the current through the inductors doubles the amount of current through the inductors cuts the current through the inductors one-half increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these has no effect on the current through the inductors doubles the amount of current through the inductors cuts the current through the inductors one-half increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit None of these ANSWER DOWNLOAD EXAMIANS APP
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