Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 550 Ohm 410 Ohm 400 Ohm 310 Ohm None of these 550 Ohm 410 Ohm 400 Ohm 310 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 312 Ohm 1590 Ohm None of these 690 Ohm less than 1 Ohm 312 Ohm 1590 Ohm None of these 690 Ohm less than 1 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the Q point moves along the load line, the voltage increases when the current Increases Can be any of above None of these Stays the same Decreases Increases Can be any of above None of these Stays the same Decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? A paramagnetic material All of these A diamagnetic material None of these A ferromagnetic material A paramagnetic material All of these A diamagnetic material None of these A ferromagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a series RC circuit? None of these The total current is greater than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these The total current is greater than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 10 k Ohm 2 k Ohm 1 k Ohm 20 k Ohm None of these 10 k Ohm 2 k Ohm 1 k Ohm 20 k Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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