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? 24.2 mA 34.4 mA 28.4 mA None of these 68.4 mA 24.2 mA 34.4 mA 28.4 mA None of these 68.4 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: has no effect on the capacitive reactance cuts the capacitive reactance in half doubles the amount of capacitive reactance None of these multiplies the capacitive reactance by 7 has no effect on the capacitive reactance cuts the capacitive reactance in half doubles the amount of capacitive reactance None of these multiplies the capacitive reactance by 7 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: multiplies the capacitive reactance by 6.28 None of these doubles the amount of a capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance multiplies the capacitive reactance by 6.28 None of these doubles the amount of a capacitive reactance cuts the capacitive reactance in half has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? None of these 100 A 1000 A 0.41666666666667 0.1 A None of these 100 A 1000 A 0.41666666666667 0.1 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current leads the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree ac current and voltage are exactly in phase None of these ac current lags the voltage by 90 degree ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to Short the load resistor Short the voltage source Open the voltage source Open the load resister None of these Short the load resistor Short the voltage source Open the voltage source Open the load resister None of these ANSWER DOWNLOAD EXAMIANS APP
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