Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? None of these Mechanical energy Chemical energy Solar energy Electronical energy None of these Mechanical energy Chemical energy Solar energy Electronical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? 120 V 170 V 180 V None of these 100 V 120 V 170 V 180 V None of these 100 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 20 mW 300 mW 10 mW None of these 200 mW 20 mW 300 mW 10 mW None of these 200 mW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely capacitive circuit: None of these doubles the amount of total current thrice the amount of total current cuts the total current by one-half has no effect on the total circuit current None of these doubles the amount of total current thrice the amount of total current cuts the total current by one-half has no effect on the total circuit current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? None of these 20 A 0.20833333333333 50 A None of these 20 A 0.20833333333333 50 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.25 4 180 0.5 None of these 0.25 4 180 0.5 None of these ANSWER DOWNLOAD EXAMIANS APP
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