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? 30 Ohm None of these 10 Ohm 20 Ohm 100 Ohm 30 Ohm None of these 10 Ohm 20 Ohm 100 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal voltage source and parallel resistor Ideal current source and parallel resistor None of these Ideal current source and series resistor Ideal voltage source and series resistor Ideal voltage source and parallel resistor Ideal current source and parallel resistor None of these Ideal current source and series resistor Ideal voltage source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 12 V 30 V None of these 18 V 24 V 12 V 30 V None of these 18 V 24 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: None of these a good conductor of magnetic fields a good insulator a poor conductor of electrostatic fields a good conductor None of these a good conductor of magnetic fields a good insulator a poor conductor of electrostatic fields a good conductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The opposition to a build-up of magnetic fields None of these The force that maintains lines of force The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The opposition to a build-up of magnetic fields None of these The force that maintains lines of force 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 0.20833333333333 50 A 20 A None of these 0.20833333333333 50 A 20 A ANSWER DOWNLOAD EXAMIANS APP
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