Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 85 81 9 6 None of these 85 81 9 6 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for resistance is the: volt ohm ampere watt None of these volt ohm ampere watt None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: equal to 0.707 times the peak amplitude the number of cycles completed in one second the time required to complete one full cycle None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the number of cycles completed in one second the time required to complete one full cycle None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RL circuit? The voltage always has the same amplitude and phase for every part of the circuit The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than the sum of the voltages across the resistance and inductance None of these The total voltage lags the total current by less than 90 The voltage always has the same amplitude and phase for every part of the circuit The total voltages is equal to the sum of the voltages across the resistance and inductance The total voltage is less than the sum of the voltages across the resistance and inductance None of these The total voltage lags the total current by less than 90 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? 1000 A 0.1 A 100 A None of these 0.41666666666667 1000 A 0.1 A 100 A None of these 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA 13 mA 3.2 mA 0.05 mA None of these 3.75 mA 13 mA 3.2 mA 0.05 mA None of these ANSWER DOWNLOAD EXAMIANS APP
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