Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 36 V 60 V 0 V 40 V None of these 36 V 60 V 0 V 40 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of electron current flow is: from right to left from negative to positive None of these from positive to negative from neutral to positive from right to left from negative to positive None of these from positive to negative from neutral to positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts light energy to electrical energy is called a: solar cell photo transistor None of these photodiode thermocouple solar cell photo transistor None of these photodiode thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: All of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc None of these All of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases is maximum at the resonant frequency is minimum at the resonant frequency None of these 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? 0.25 180 0.5 4 None of these 0.25 180 0.5 4 None of these ANSWER DOWNLOAD EXAMIANS APP
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