Electronic Principles 1 Microfarad is the same as: None of these 1 million farads 1 million picofarads 1 millionth of a picofarad 1000 millifarads None of these 1 million farads 1 million picofarads 1 millionth of a picofarad 1000 millifarads ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? 1000 W None of these 100 W 20 W 200 W 1000 W None of these 100 W 20 W 200 W 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? 20 A 0.20833333333333 None of these 50 A 20 A 0.20833333333333 None of these 50 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance? P = I2R P = IE I = P/E P = E2/R None of these P = I2R P = IE I = P/E P = E2/R None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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 the core is permitted to move freely within the coil None of these changing the polarity of the current in the coil changes the polarity of the magnetic field around the core 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 the core is permitted to move freely within the coil ANSWER DOWNLOAD EXAMIANS APP
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? None of these 20 km or less 200 k Ohm or less 200 k Ohm or more 20 k Ohm or more None of these 20 km or less 200 k Ohm or less 200 k Ohm or more 20 k Ohm or more ANSWER DOWNLOAD EXAMIANS APP
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