Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 81 85 None of these 9 6 81 85 None of these 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: None of these passes higher-frequency signals and reduces lower-frequency signals reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals None of these passes higher-frequency signals and reduces lower-frequency signals reduces the level of all frequencies by a significant amount passes lower-frequency signals and reduces higher-frequency signals has no effect on ac signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Voltage is The flow of charged particles through a material Trie force that causes electrons to flow None of these The number of free electrons in an atom The smallest electrically charged particle The flow of charged particles through a material Trie force that causes electrons to flow None of these The number of free electrons in an atom The smallest electrically charged particle ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rise time of a pulse waveform is the time required for the voltage to rise: from zero to its peak value None of these from zero to its rms value from 10% of the peak value to 70.7% of the peak value from 10% of the peak value to 90% of the peak value from zero to its peak value None of these from zero to its rms value from 10% of the peak value to 70.7% of the peak value from 10% of the peak value to 90% of the peak value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: None of these the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value the amplitude at 70.7% of the maximum value None of these the amplitude at 1.41 times the maximum value the amplitude at 90% of the maximum value the maximum positive or negative value the amplitude at 70.7% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: 1 k ohm None of these 100,000 ohm one million ohms one-millionth of an ohm 1 k ohm None of these 100,000 ohm one million ohms one-millionth of an ohm ANSWER DOWNLOAD EXAMIANS APP
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