Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 50 Ohm or more None of these 5 Ohm 6 Ohm 100 Ohm 50 Ohm or more None of these 5 Ohm 6 Ohm 100 Ohm 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? 200 mA 300 mA None of these 7.8 mA 208 mA 200 mA 300 mA None of these 7.8 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases is minimum at the resonant frequency None of these is maximum at the resonant frequency always decreases as the applied frequency increases always increases as the applied frequency increases is minimum at the resonant frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that has twice the amount of charge of a normal electron An electron that costs nothing An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that has twice the amount of charge of a normal electron ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Reluctance Retentivity There is no valid comparison Permeance Permeability Reluctance Retentivity There is no valid comparison Permeance Permeability ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The emitter diode is usually Nonconducting None of these Reverse-biased Operating in the breakdwon region Forward-biased Nonconducting None of these Reverse-biased Operating in the breakdwon region Forward-biased ANSWER DOWNLOAD EXAMIANS APP
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