Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 81 None of these 9 85 6 81 None of these 9 85 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 12 V 24 V None of these 30 V 18 V 12 V 24 V None of these 30 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? None of these 0.707 1.5 10.738 0.575 None of these 0.707 1.5 10.738 0.575 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 38.74 V 35.4 V 37.4 V None of these 30.4 V 38.74 V 35.4 V 37.4 V None of these 30.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? The circular magnetic field that surrounds a conductor carrying a current None of these The amount of magnetic flux that is not confined to the core material of an electromagnet The force of attraction between the poles of a permanent and temporary magnetic field Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The circular magnetic field that surrounds a conductor carrying a current None of these The amount of magnetic flux that is not confined to the core material of an electromagnet The force of attraction between the poles of a permanent and temporary magnetic field Magnetism that remains in the core of an electromagnet after the current through the coil is turned off ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the current gain is 200 and the collector current is 100 mA, the base current is 0.083333333333333 2 mA 200 A None of these 0.5 mA 0.083333333333333 2 mA 200 A None of these 0.5 mA ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS