Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ammeter None of these Voltmeter Ohmmeter Wattmeter Ammeter None of these Voltmeter Ohmmeter Wattmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing causing an ac phase shift greater than 90 degree dissipating 1 W of power None of these storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing causing an ac phase shift greater than 90 degree dissipating 1 W of power None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases most accurately describes a purely capacitive circuit? Combinations of resistance and capacitive reactance provide any opposition to current flow Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree None of these Combinations of resistance and capacitive reactance provide any opposition to current flow Capacitive reactance provides the only opposition to current flow Resistances provide the only opposition to current flow The ac voltage leads the current by 90 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff voltage source has a resistance of less than 10 Ohm None of these More than 100 k Ohm Less than 100 k Ohm At least 10 Ohm less than 10 Ohm None of these More than 100 k Ohm Less than 100 k Ohm At least 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? None of these 0 degree 180 degree 90 degree 26.6 degree None of these 0 degree 180 degree 90 degree 26.6 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? None of these 7.75 µA 7.8 µA 10.3 µA 14.8 µA None of these 7.75 µA 7.8 µA 10.3 µA 14.8 µA ANSWER DOWNLOAD EXAMIANS APP
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