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? 200 mA None of these 300 mA 7.8 mA 208 mA 200 mA None of these 300 mA 7.8 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The emitter diode is usually None of these Reverse-biased Forward-biased Operating in the breakdwon region Nonconducting None of these Reverse-biased Forward-biased Operating in the breakdwon region Nonconducting 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? 1234 Ohm 692.2 Ohm None of these 3890 Ohm 844.5 Ohm 1234 Ohm 692.2 Ohm None of these 3890 Ohm 844.5 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? 0.1 A 1000 A 0.41666666666667 100 A None of these 0.1 A 1000 A 0.41666666666667 100 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitance of a series capacitor circuit is: None of these equal to the sum of the individual capacitance values equal to the sun of the individual capacitive-reactance values less than the value of the smallest capacitor equal to the source voltage divided by total current None of these equal to the sum of the individual capacitance values equal to the sun of the individual capacitive-reactance values less than the value of the smallest capacitor equal to the source voltage divided by total current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At cut off, the Q point is at None of these upper end of the load line middle of the load line infinity lower end of the load line None of these upper end of the load line middle of the load line infinity lower end of the load line ANSWER DOWNLOAD EXAMIANS APP
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