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 550 Ohm 400 Ohm 310 Ohm None of these 410 Ohm 550 Ohm 400 Ohm 310 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Voltmeter Ohmmeter None of these Wattmeter Ammeter Voltmeter Ohmmeter None of these Wattmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field? Counterclockwise Out of this page Into this page None of these Clockwise Counterclockwise Out of this page Into this page None of these Clockwise ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of Kirchhoffs current law? The algebraic sum of currents entering and leaving a point is equal to zero The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents in a loop is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it None of these The algebraic sum of currents entering and leaving a point is equal to zero The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents in a loop is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf None of these Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is another term for counter emf Inductive reactance is a force that tends to overcome the effects of counter emf None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical pressure to electrical energy is called a: photodiode nicad cell piezoelectric device None of these solar cell photodiode nicad cell piezoelectric device None of these solar cell ANSWER DOWNLOAD EXAMIANS APP
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