Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 81 85 9 None of these 6 81 85 9 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: 1000 A None of these one-millionth of an ampere one million amperes 10000A 1000 A None of these one-millionth of an ampere one million amperes 10000A 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? None of these 300 mW 10 mW 200 mW 20 mW None of these 300 mW 10 mW 200 mW 20 mW ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The total voltage is greater than the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these The total voltage is greater than the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The total voltage is equal to the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit None of these 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? 300 mA None of these 7.8 mA 200 mA 208 mA 300 mA None of these 7.8 mA 200 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these they have the same amplitude and frequency None of these their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these they have the same amplitude and frequency None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS