Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? None of these 3 2 43922 43891 None of these 3 2 43922 43891 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? None of these 0.041666666666667 0.93 W 9.3 W 0.93 V None of these 0.041666666666667 0.93 W 9.3 W 0.93 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? None of these Four - two negative and two positive One - a negative terminal Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals None of these Four - two negative and two positive One - a negative terminal Two - a negative terminal and a positive terminal Three - negative, positive and neutral terminals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrasers best describes flux density? The force that maintains lines of force 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 None of these The force that maintains lines of force 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? 68.4 mA 28.4 mA 34.4 mA 24.2 mA None of these 68.4 mA 28.4 mA 34.4 mA 24.2 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the Q point moves along the load line, the voltage increases when the current Decreases None of these Stays the same Can be any of above Increases Decreases None of these Stays the same Can be any of above Increases ANSWER DOWNLOAD EXAMIANS APP
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