Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 300 µA 350 µA 0.25 µA 250 µA None of these 300 µA 350 µA 0.25 µA 250 µA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The force that maintains lines of force None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The opposition to a build-up of magnetic fields The force that maintains lines of force None of these The concentration of lines of magnetic force The rate of change of the number of lines of magnetic force The opposition to a build-up of magnetic fields 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 None of these At least 10 Ohm less than 10 Ohm Less than 100 k Ohm More than 100 k Ohm None of these At least 10 Ohm less than 10 Ohm Less than 100 k Ohm ANSWER DOWNLOAD EXAMIANS APP
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? None of these 6 Ohm 50 Ohm or more 100 Ohm 5 Ohm None of these 6 Ohm 50 Ohm or more 100 Ohm 5 Ohm 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? 600 V 0.4 V 4.73 None of these 24 V 600 V 0.4 V 4.73 None of these 24 V 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? 20 k Ohm 2 k Ohm 1 k Ohm None of these 10 k Ohm 20 k Ohm 2 k Ohm 1 k Ohm None of these 10 k Ohm ANSWER DOWNLOAD EXAMIANS APP
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