Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 81 85 6 9 None of these 81 85 6 9 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 37.4 V 38.74 V 35.4 V None of these 30.4 V 37.4 V 38.74 V 35.4 V None of these 30.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Ammeter Wattmeter None of these Voltmeter Ohmmeter Ammeter Wattmeter None of these Voltmeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: 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 storing 1 V for 1 second dissipating 1 W of power None of these 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 storing 1 V for 1 second dissipating 1 W of power None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? None of these 60 Ohm 250 Ohm 70.7Ohm 99.3 Ohm None of these 60 Ohm 250 Ohm 70.7Ohm 99.3 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff? 20 k Ohm or more 200 k Ohm or less None of these 200 k Ohm or more 20 km or less 20 k Ohm or more 200 k Ohm or less None of these 200 k Ohm or more 20 km or less ANSWER DOWNLOAD EXAMIANS APP
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