Electronic Principles What is one important thing transistors do? Rectify line voltage Regulate voltage Amplify weak signals Emit light None of these Rectify line voltage Regulate voltage Amplify weak signals Emit light 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? 7.8 mA 200 mA None of these 300 mA 208 mA 7.8 mA 200 mA None of these 300 mA 208 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value? 90 Ohm - 101 ohm 98 Ohm - 100.1 ohm 90 Ohm - 110 ohm 99 Ohm - 102 ohm None of these 90 Ohm - 101 ohm 98 Ohm - 100.1 ohm 90 Ohm - 110 ohm 99 Ohm - 102 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following devices is most often used for measuring electrical potential difference? Wattmeter Voltmeter None of these Ohmmeter Ammeter Wattmeter Voltmeter None of these Ohmmeter Ammeter ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to Short the voltage source None of these Open the voltage source Short the load resistor Open the load resister Short the voltage source None of these Open the voltage source Short the load resistor Open the load resister ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: dissipating 1 W of power causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second None of these dissipating 1 W of power causing an ac phase shift greater than 90 degree changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing storing 1 V for 1 second None of these ANSWER DOWNLOAD EXAMIANS APP
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