Electronic Principles Which one of the following devices is most often used for measuring opposition to current flow in a circuit? None of these Ammeter Wattmeter Voltmeter Ohmmeter None of these Ammeter Wattmeter Voltmeter Ohmmeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA? 0.17 V None of these 18.8 V 10.17 V 20 V 0.17 V None of these 18.8 V 10.17 V 20 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a negative ion? An atom that contains more electrons than protons An atom that contains more electrons than neutrons None of these An atom that contains more protons than neutrons An atom that contains more protons than electrons An atom that contains more electrons than protons An atom that contains more electrons than neutrons None of these An atom that contains more protons than neutrons An atom that contains more protons than electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the number of cycles completed in one second None of these the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the number of cycles completed in one second None of these the time required to complete one full cycle the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio? 0.5 180 4 0.25 None of these 0.5 180 4 0.25 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? None of these 170 V 120 V 100 V 180 V None of these 170 V 120 V 100 V 180 V ANSWER DOWNLOAD EXAMIANS APP
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