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? 2 43891 None of these 3 43922 2 43891 None of these 3 43922 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 = E2/R P = IE I = P/E None of these P = I2R P = E2/R P = IE I = P/E None of these P = I2R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature Increases None of these Decreases Stays the same 0oC Increases None of these Decreases Stays the same 0oC ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode 10 mA 11 mA 14 mA None of these 12 mA 10 mA 11 mA 14 mA None of these 12 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current can flow through a normally open push button switch as long as: None of these its contact remain open its contact remain open you are not pressing the button you are pressing the button None of these its contact remain open its contact remain open you are not pressing the button you are pressing the button ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? None of these 690 ohm 150 ohm 220 ohm 445 ohm None of these 690 ohm 150 ohm 220 ohm 445 ohm ANSWER DOWNLOAD EXAMIANS APP
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