Electronic Principles A loadstone is: a paramagnetic alloy a natural magnet an artificial magnet a temporary magnet None of these a paramagnetic alloy a natural magnet an artificial magnet a temporary magnet None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 85 9 None of these 6 81 85 9 None of these 6 81 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: peak both the voltage and current waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms None of these peak the current and round off the voltage waveforms peak both the voltage and current waveforms round off both the voltage and current waveforms peak the voltage and round off the current waveforms None of these peak the current and round off the voltage waveforms 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? 200 mA None of these 208 mA 300 mA 7.8 mA 200 mA None of these 208 mA 300 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? 224 ohm None of these 77.7 ohm 88.8 ohm 89.3 ohm 224 ohm None of these 77.7 ohm 88.8 ohm 89.3 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 40 V 36 V None of these 0 V 60 V 40 V 36 V None of these 0 V 60 V ANSWER DOWNLOAD EXAMIANS APP
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