Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 81 9 6 85 None of these 81 9 6 85 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 300 mA 208 mA 200 mA 7.8 mA None of these 300 mA 208 mA 200 mA 7.8 mA None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The period of a waveform is: the time required to complete one full cycle the number of cycles completed in one second None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude the time required to complete one full cycle the number of cycles completed in one second None of these the time required for the voltage to rise from 10% to 90% of the peak amplitude equal to 0.707 times the peak amplitude ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A device that converts mechanical pressure to electrical energy is called a: None of these piezoelectric device nicad cell solar cell photodiode None of these piezoelectric device nicad cell solar cell photodiode ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 6 Ohm None of these 100 Ohm 5 Ohm 50 Ohm or more 6 Ohm None of these 100 Ohm 5 Ohm 50 Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W? 3890 Ohm 692.2 Ohm None of these 844.5 Ohm 1234 Ohm 3890 Ohm 692.2 Ohm None of these 844.5 Ohm 1234 Ohm ANSWER DOWNLOAD EXAMIANS APP
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