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 200 mA 208 mA 7.8 mA None of these 300 mA 200 mA 208 mA 7.8 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are secondary wet-cell batteries None of these Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries None of these Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary dry-cell batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? None of these 754 Ohm 120 Ohm 60 Ohm 30 Ohm None of these 754 Ohm 120 Ohm 60 Ohm 30 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? The total voltage lags the total current by less than 90 None of these The total voltage is equal to the sum of the voltages across the resistance and inductance The total voltages is less than the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit The total voltage lags the total current by less than 90 None of these The total voltage is equal to the sum of the voltages across the resistance and inductance The total voltages is less than the sum of the voltages across the resistance and inductance The voltage always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 9 81 None of these 6 85 9 81 None of these 6 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? An atom that contains more protons than electrons None of these An atom that contains more electrons than protons An atom that contains more protons than neutrons An atom that contains more electrons than neutrons An atom that contains more protons than electrons None of these An atom that contains more electrons than protons An atom that contains more protons than neutrons An atom that contains more electrons than neutrons ANSWER DOWNLOAD EXAMIANS APP
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