Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency None of these The higher the amplitude of a waveform, the higher its frequency The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts thermal energy to electrical energy is called a: piezoelectric devices solar cell None of these chemical cell thermocouple piezoelectric devices solar cell None of these chemical cell thermocouple ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 0.05 mA None of these 13 mA 3.2 mA 3.75 mA 0.05 mA None of these 13 mA 3.2 mA 3.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: one million ohms 1 k ohm one-millionth of an ohm 100,000 ohm None of these one million ohms 1 k ohm one-millionth of an ohm 100,000 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43891 43922 2 3 None of these 43891 43922 2 3 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude None of these equal to 1.41 times the peak amplitude the time required to complete one full cycle the number of cycles completed in one second equal to 0.707 times the peak amplitude None of these equal to 1.41 times the peak amplitude the time required to complete one full cycle the number of cycles completed in one second ANSWER DOWNLOAD EXAMIANS APP
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