Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 100 Ohm 20 Ohm None of these 10 Ohm 30 Ohm 100 Ohm 20 Ohm None of these 10 Ohm 30 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA? 20 V 18.8 V 0.17 V None of these 10.17 V 20 V 18.8 V 0.17 V None of these 10.17 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: None of these decreasing the area of the plates increasing the voltage applied to the plates increasing the area of the plates increasing the frequency of the applied voltage None of these decreasing the area of the plates increasing the voltage applied to the plates increasing the area of the plates increasing the frequency of the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? None of these 0.3 A 0.4 A 0.2 A 0.6 A None of these 0.3 A 0.4 A 0.2 A 0.6 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? None of these 50 A 0.20833333333333 20 A None of these 50 A 0.20833333333333 20 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? None of these 4.73 0.4 V 24 V 600 V None of these 4.73 0.4 V 24 V 600 V ANSWER DOWNLOAD EXAMIANS APP
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