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? 410 Ohm 310 Ohm 550 Ohm None of these 400 Ohm 410 Ohm 310 Ohm 550 Ohm None of these 400 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A typical light switch in your home is a: toggle switch rotary switch momentary push button switch None of these knife switch toggle switch rotary switch momentary push button switch None of these knife switch ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 30 Ohm None of these 100 Ohm 10 Ohm 20 Ohm 30 Ohm None of these 100 Ohm 10 Ohm 20 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 0.707 None of these 10.738 1.5 0.575 0.707 None of these 10.738 1.5 0.575 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA 13 mA None of these 0.05 mA 3.2 mA 3.75 mA 13 mA None of these 0.05 mA 3.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding? 50 A 0.20833333333333 20 A None of these 50 A 0.20833333333333 20 A None of these ANSWER DOWNLOAD EXAMIANS APP
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