Electronic Principles What is the inductive reactance of a 2-H coil operating at 60 Hz? 754 Ohm None of these 30 Ohm 60 Ohm 120 Ohm 754 Ohm None of these 30 Ohm 60 Ohm 120 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If a load resistance is 1 kW, a stiff current source has a resistance of At least 10 Ohm More than 100 k Ohm None of these Less than 100 k Ohm Less than 10 Ohm At least 10 Ohm More than 100 k Ohm None of these Less than 100 k Ohm Less than 10 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A battery is a device composed of one or more: solar cells piezoeletric cells None of these chemical cells voltage generators solar cells piezoeletric cells None of these chemical cells voltage generators ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the smallest number of polarities required for current flow? Four - two negative and two positive One - a negative terminal Three - negative, positive and neutral terminals None of these Two - a negative terminal and a positive terminal Four - two negative and two positive One - a negative terminal Three - negative, positive and neutral terminals None of these Two - a negative terminal and a positive terminal ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation? 10 mW 20 mW 200 mW 300 mW None of these 10 mW 20 mW 200 mW 300 mW None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage reverses polarity periodically The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time None of these The voltage reverses polarity periodically The voltage remains at one polarity and at a steady level The voltage remains at one polarity but changes value periodically The voltage causes current to flow in two directions at the same time None of these ANSWER DOWNLOAD EXAMIANS APP
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