Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 24 V 0.4 V 4.73 None of these 600 V 24 V 0.4 V 4.73 None of these 600 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 310 Ohm 400 Ohm 550 Ohm 410 Ohm None of these 310 Ohm 400 Ohm 550 Ohm 410 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the voltages in a series RC circuit? The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage is greater than the sum of the voltages across the resistance and capacitance None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance The total voltage is less than the sum of the voltages across the resistance and capacitance The voltage always has the same amplitude and phase for every part of the circuit The total voltage is greater than the sum of the voltages across the resistance and capacitance None of these The total voltage is equal to the sum of the voltages across the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much power is being dissipated by a 1000 W resistance that has 25 V applied to it? 325 kW 80 W None of these 0.24 W 0.625 W 325 kW 80 W None of these 0.24 W 0.625 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio of a power transformer that shows 50 V at its secondary winding when you apply 150 V to its primary winding? 43922 43891 2 None of these 3 43922 43891 2 None of these 3 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: reduces the value of inductance by one-fourth multiplies the value of inductance by four reduces the value of inductance by one-half multiplies the value of inductance by two None of these reduces the value of inductance by one-fourth multiplies the value of inductance by four reduces the value of inductance by one-half multiplies the value of inductance by two None of these ANSWER DOWNLOAD EXAMIANS APP
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