Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 6 Ohm None of these 100 Ohm 50 Ohm or more 5 Ohm 6 Ohm None of these 100 Ohm 50 Ohm or more 5 Ohm ANSWER DOWNLOAD EXAMIANS APP
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? 400 Ohm None of these 410 Ohm 310 Ohm 550 Ohm 400 Ohm None of these 410 Ohm 310 Ohm 550 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: reduces the value of inductance by one-half has no effect on the inductance multiplies the value of inductance by four multiplies the value of inductance by two None of these reduces the value of inductance by one-half has no effect on the inductance multiplies the value of inductance by four multiplies the value of inductance by two None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltage in a parallel RL circuit? The voltage always has the same amplitude and phase for every part of the circuit The total voltage 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 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 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 total voltages is less than the sum of the voltages across the resistance and inductance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? None of these 70.7Ohm 99.3 Ohm 250 Ohm 60 Ohm None of these 70.7Ohm 99.3 Ohm 250 Ohm 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: increasing the voltage applied to the plates increasing the frequency of the applied voltage None of these increasing the area of the plates decreasing the area of the plates increasing the voltage applied to the plates increasing the frequency of the applied voltage None of these increasing the area of the plates decreasing the area of the plates ANSWER DOWNLOAD EXAMIANS APP
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