Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 180 4 0.25 None of these 0.5 180 4 0.25 None of these 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of More than 100 k Ohm Less than 100 k Ohm less than 10 Ohm None of these At least 10 Ohm More than 100 k Ohm Less than 100 k Ohm less than 10 Ohm None of these At least 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz? 100 Ohm None of these 628 Ohm 444 Ohm Less than 1 Ohm 100 Ohm None of these 628 Ohm 444 Ohm Less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current lags the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current leads the voltage by 90 degree ac current is converted to dc voltage ac current lags the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current leads the voltage by 90 degree ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals 0o C None of these 25o C -276o C -273o C 0o C None of these 25o C -276o C -273o C ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to None of these Open the load resister Short the load resistor Short the voltage source Open the voltage source None of these Open the load resister Short the load resistor Short the voltage source Open the voltage source ANSWER DOWNLOAD EXAMIANS APP
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