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 None of these 7.8 mA 208 mA 300 mA 200 mA None of these 7.8 mA 208 mA 300 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? None of these 690 Ohm 1590 Ohm 312 Ohm less than 1 Ohm None of these 690 Ohm 1590 Ohm 312 Ohm less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 30.4 V 35.4 V 37.4 V None of these 38.74 V 30.4 V 35.4 V 37.4 V None of these 38.74 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the base supply voltage increases, the Q point moves down up nowhere off the load line None of these down up nowhere off the load line None of these 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 voltage is less than the sum of the voltages across the resistance and inductance The total voltages is equal to 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 voltage is less than the sum of the voltages across the resistance and inductance The total voltages is equal to 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 The merging of a free electron and a hole is called None of these Recombination Covalent bonding Lifetime Thermal energy None of these Recombination Covalent bonding Lifetime Thermal energy ANSWER DOWNLOAD EXAMIANS APP
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