Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 410 Ohm 310 Ohm None of these 550 Ohm 400 Ohm 410 Ohm 310 Ohm None of these 550 Ohm 400 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current is An imbalance of electrical charges The flow of charged particles through a material None of these The number of free electrons in an atom The force that causes electrons to flow An imbalance of electrical charges The flow of charged particles through a material None of these The number of free electrons in an atom The force that causes electrons to flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a purely inductive circuit: increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit has no effect on the current through the inductors cuts the current through the inductors one-half doubles the amount of current through the inductors None of these increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit has no effect on the current through the inductors cuts the current through the inductors one-half doubles the amount of current through the inductors None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit? None of these 100 V and a parallel resistance of 10 k Ohm 1000 V and a series resistance of 10 k Ohm 1000 V and a parallel resistance of 10 kOhm 100 V and a series resistance of 10 k Ohm None of these 100 V and a parallel resistance of 10 k Ohm 1000 V and a series resistance of 10 k Ohm 1000 V and a parallel resistance of 10 kOhm 100 V and a series resistance of 10 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the impedance of a series RC circuit? The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is less than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance The impedance is greater than the sum of the resistance and capacitive reactance The impedance is greater than either the resistance or capacitive reactance but less than their sum None of these The impedance is less than the sum of the resistance and capacitive reactance The impedance is equal to the sum of the resistance and capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: one-millionth of an ohm one million ohms None of these 100,000 ohm 1 k ohm one-millionth of an ohm one million ohms None of these 100,000 ohm 1 k ohm ANSWER DOWNLOAD EXAMIANS APP
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