Electronic Principles The peak value of a sine waveform is: the amplitude at 1.41 times the maximum value the maximum positive or negative value the amplitude at 90% of the maximum value None of these the amplitude at 70.7% of the maximum value the amplitude at 1.41 times the maximum value the maximum positive or negative value the amplitude at 90% of the maximum value None of these the amplitude at 70.7% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 85 81 6 None of these 9 85 81 6 None of these 9 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? 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 The higher the amplitude of a waveform, the higher its frequency None of these 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 The higher the amplitude of a waveform, the higher its frequency None of these The longer the period of a waveform, the lower its frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: Same as the primary current No more than 10% less than the primary current None of these Twice the primary current One-half the primary current Same as the primary current No more than 10% less than the primary current None of these Twice the primary current One-half the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The algebraic sum of voltages in a loop is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it None of these The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages entering and leaving a point is equal to zero The algebraic sum of voltages in a loop is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it None of these The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages entering and leaving a point is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Molecule is A atom that has an excessive number of electrons in its outer orbit None of these The smallest particle of a substance that retains the properties of that substance A atom that has a shortage of electrons in its outer orbit A atom that flows whenever there is an imbalance of electrical charges between two points A atom that has an excessive number of electrons in its outer orbit None of these The smallest particle of a substance that retains the properties of that substance A atom that has a shortage of electrons in its outer orbit A atom that flows whenever there is an imbalance of electrical charges between two points ANSWER DOWNLOAD EXAMIANS APP
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