Electronic Principles The equivalent of 1 micro A is: 10000A one million amperes one-millionth of an ampere 1000 A None of these 10000A one million amperes one-millionth of an ampere 1000 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? None of these 20 W 1000 W 100 W 200 W None of these 20 W 1000 W 100 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? All of these Current leads the voltage through a resistor Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these All of these Current leads the voltage through a resistor Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 18 V 30 V 24 V 12 V None of these 18 V 30 V 24 V 12 V None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these None of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of a generator? Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel Current flowing through a conductor generates a magnetic field None of these Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel ANSWER DOWNLOAD EXAMIANS APP
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