Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 85 6 None of these 9 81 85 6 None of these 9 81 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? I = P/E None of these P = I2R P = IE P = E2/R I = P/E None of these P = I2R P = IE P = E2/R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 208 V None of these 707 V 651 V 700 V 208 V None of these 707 V 651 V 700 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor? 250 µA None of these 300 µA 350 µA 0.25 µA 250 µA None of these 300 µA 350 µA 0.25 µA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? 0.93 W 9.3 W 0.93 V 0.041666666666667 None of these 0.93 W 9.3 W 0.93 V 0.041666666666667 None of these 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? 692.2 Ohm 3890 Ohm 1234 Ohm 844.5 Ohm None of these 692.2 Ohm 3890 Ohm 1234 Ohm 844.5 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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