Electronic Principles Reducing the amount of current through an inductor: None of these reduces the value of inductance by one-half multiplies the value of inductance by four multiplies the value of inductance by two has no effect on the inductance None of these reduces the value of inductance by one-half multiplies the value of inductance by four multiplies the value of inductance by two has no effect on the inductance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit? None of these 1000 V and a series resistance of 10 k Ohm 100 V and a parallel resistance of 10 k Ohm 100 V and a series resistance of 10 k Ohm 1000 V and a parallel resistance of 10 kOhm None of these 1000 V and a series resistance of 10 k Ohm 100 V and a parallel resistance of 10 k Ohm 100 V and a series resistance of 10 k Ohm 1000 V and a parallel resistance of 10 kOhm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An intrinsic semiconductor has some holes in it at room temperature. What causes these holes? Valence electrons Free electrons Thermal energy Doping None of these Valence electrons Free electrons Thermal energy Doping None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these an increase in current through the coil causes no further increase in the mmf ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When applying a square waveform to a capacitor, the circuit tends to: peak the current and round off the voltage waveforms peak the voltage and round off the current waveforms round off both the voltage and current waveforms peak both the voltage and current waveforms None of these peak the current and round off the voltage waveforms peak the voltage and round off the current waveforms round off both the voltage and current waveforms peak both the voltage and current waveforms None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: has no effect on the capacitive reactance multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance None of these cuts the capacitive reactance in half has no effect on the capacitive reactance multiplies the capacitive reactance by 7 doubles the amount of capacitive reactance None of these cuts the capacitive reactance in half ANSWER DOWNLOAD EXAMIANS APP
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