Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? None of these 6 81 9 85 None of these 6 81 9 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Absolute Zero temperature equals 25o C -276o C None of these -273o C 0o C 25o C -276o C None of these -273o C 0o C 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? 4 0.5 0.25 180 None of these 4 0.5 0.25 180 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: None of these multiplies the capacitive reactance by 7 has no effect on the capacitive reactance cuts the capacitive reactance in half doubles the amount of capacitive reactance None of these multiplies the capacitive reactance by 7 has no effect on the capacitive reactance cuts the capacitive reactance in half doubles the amount of capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 16 V 8 V 15 V None of these 7.5 V 16 V 8 V 15 V None of these 7.5 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal Four - two negative and two positive None of these One - a negative terminal Three - negative, positive and neutral terminals Two - a negative terminal and a positive terminal Four - two negative and two positive None of these One - a negative terminal ANSWER DOWNLOAD EXAMIANS APP
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