Electronic Principles Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff? 20 km or less 200 k Ohm or more None of these 20 k Ohm or more 200 k Ohm or less 20 km or less 200 k Ohm or more None of these 20 k Ohm or more 200 k Ohm or less ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil None of these frequent changes in the direction of current through the coil causes heating effects in the core material an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals -276o C 25o C None of these -273o C 0o C -276o C 25o C None of these -273o C 0o C ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true? Power dissipation of a pure capacitor increases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency All of these Power dissipation of a pure capacitor decreases with operating frequency None of these Power dissipation of a pure capacitor increases with operating frequency There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency All of these Power dissipation of a pure capacitor decreases with operating frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles As the temperature increases, the current gain contant increases can be any of the above None of these decreases contant increases can be any of the above None of these decreases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary wet-cell batteries None of these Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are primary wet-cell batteries Common flashlight batteries are secondary wet-cell batteries None of these ANSWER DOWNLOAD EXAMIANS APP
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